612879266520 has 192 divisors, whose sum is σ = 2177059472640. Its totient is φ = 148858675200.

The previous prime is 612879266507. The next prime is 612879266579. The reversal of 612879266520 is 25662978216.

612879266520 is a `hidden beast` number, since 6 + 1 + 28 + 7 + 92 + 6 + 6 + 520 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1425501 + ... + 1804940.

It is an arithmetic number, because the mean of its divisors is an integer number (11338851420).

Almost surely, 2^612879266520 is an apocalyptic number.

612879266520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

612879266520 is an abundant number, since it is smaller than the sum of its proper divisors (1564180206120).

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

612879266520 is a wasteful number, since it uses less digits than its factorization.

612879266520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3230506 (or 3230499 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 612879266520 in words is "six hundred twelve billion, eight hundred seventy-nine million, two hundred sixty-six thousand, five hundred twenty".