577878136625880 has 192 divisors, whose sum is σ = 1939741353538560. Its totient is φ = 149110393791744.

The previous prime is 577878136625873. The next prime is 577878136625891. The reversal of 577878136625880 is 88526631878775.

577878136625880 is a `hidden beast` number, since 5 + 7 + 7 + 87 + 81 + 366 + 25 + 8 + 80 = 666.

577878136625880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×577878136625880² (a number of 30 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (81) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 577878136625880.

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, 172785832 + ... + 176098551.

It is an arithmetic number, because the mean of its divisors is an integer number (10102819549680).

Almost surely, 2^{577878136625880} is an apocalyptic number.

It is an amenable number.

577878136625880 is an abundant number, since it is smaller than the sum of its proper divisors (1361863216912680).

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

577878136625880 is a wasteful number, since it uses less digits than its factorization.

577878136625880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348884550 (or 348884543 counting only the distinct ones).

The product of its (nonzero) digits is 7586611200, while the sum is 81.

The spelling of 577878136625880 in words is "five hundred seventy-seven trillion, eight hundred seventy-eight billion, one hundred thirty-six million, six hundred twenty-five thousand, eight hundred eighty".