612139671360 has 2016 divisors, whose sum is σ = 2774270580480. Its totient is φ = 124398084096.

The previous prime is 612139671343. The next prime is 612139671361. The reversal of 612139671360 is 63176931216.

It is a happy number.

612139671360 is a `hidden beast` number, since 6 + 1 + 213 + 9 + 6 + 71 + 360 = 666.

It is a tau number, because it is divible by the number of its divisors (2016).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612139671361) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 11549805094 + ... + 11549805146.

It is an arithmetic number, because the mean of its divisors is an integer number (1376126280).

Almost surely, 2^612139671360 is an apocalyptic number.

612139671360 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 612139671360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1387135290240).

612139671360 is an abundant number, since it is smaller than the sum of its proper divisors (2162130909120).

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

612139671360 is a wasteful number, since it uses less digits than its factorization.

612139671360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 612139671360 in words is "six hundred twelve billion, one hundred thirty-nine million, six hundred seventy-one thousand, three hundred sixty".