6139649280 has 288 divisors, whose sum is σ = 20925523584. Its totient is φ = 1528823808.

The previous prime is 6139649273. The next prime is 6139649287. The reversal of 6139649280 is 829469316.

It is an interprime number because it is at equal distance from previous prime (6139649273) and next prime (6139649287).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6139649287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10640352 + ... + 10640928.

It is an arithmetic number, because the mean of its divisors is an integer number (72658068).

Almost surely, 2^6139649280 is an apocalyptic number.

6139649280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6139649280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10462761792).

6139649280 is an abundant number, since it is smaller than the sum of its proper divisors (14785874304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6139649280 is a wasteful number, since it uses less digits than its factorization.

6139649280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 6139649280 is about 78355.9141354372. The cubic root of 6139649280 is about 1831.1103655873.

The spelling of 6139649280 in words is "six billion, one hundred thirty-nine million, six hundred forty-nine thousand, two hundred eighty".