12857772060 has 192 divisors, whose sum is σ = 46492185600. Its totient is φ = 2889057024.

The previous prime is 12857772019. The next prime is 12857772097. The reversal of 12857772060 is 6027775821.

12857772060 is a `hidden beast` number, since 1 + 2 + 8 + 577 + 72 + 0 + 6 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 12857771997 and 12857772015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 194194 + ... + 251846.

It is an arithmetic number, because the mean of its divisors is an integer number (242146800).

Almost surely, 2^12857772060 is an apocalyptic number.

12857772060 is a gapful number since it is divisible by the number (10) 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 12857772060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23246092800).

12857772060 is an abundant number, since it is smaller than the sum of its proper divisors (33634413540).

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

12857772060 is a wasteful number, since it uses less digits than its factorization.

12857772060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57737 (or 57729 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The spelling of 12857772060 in words is "twelve billion, eight hundred fifty-seven million, seven hundred seventy-two thousand, sixty".