6900646860 has 288 divisors, whose sum is σ = 23363121600. Its totient is φ = 1641185280.

The previous prime is 6900646859. The next prime is 6900646873. The reversal of 6900646860 is 686460096.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4065532 + ... + 4067228.

It is an arithmetic number, because the mean of its divisors is an integer number (81121950).

Almost surely, 2^6900646860 is an apocalyptic number.

6900646860 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 6900646860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11681560800).

6900646860 is an abundant number, since it is smaller than the sum of its proper divisors (16462474740).

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

6900646860 is a wasteful number, since it uses less digits than its factorization.

6900646860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801 (or 1796 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 6900646860 is about 83070.1321775763. The cubic root of 6900646860 is about 1903.8377517955.

The spelling of 6900646860 in words is "six billion, nine hundred million, six hundred forty-six thousand, eight hundred sixty".