677431924164 has 72 divisors (see below), whose sum is σ = 1720045847520. Its totient is φ = 224804305152.

The previous prime is 677431924163. The next prime is 677431924199. The reversal of 677431924164 is 461429134776.

677431924164 is a `hidden beast` number, since 67 + 7 + 431 + 92 + 4 + 1 + 64 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 677431924164.

It is not an unprimeable number, because it can be changed into a prime (677431924163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7233067 + ... + 7326125.

It is an arithmetic number, because the mean of its divisors is an integer number (23889525660).

Almost surely, 2^677431924164 is an apocalyptic number.

It is an amenable number.

677431924164 is an abundant number, since it is smaller than the sum of its proper divisors (1042613923356).

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

677431924164 is a wasteful number, since it uses less digits than its factorization.

677431924164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93969 (or 93964 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The spelling of 677431924164 in words is "six hundred seventy-seven billion, four hundred thirty-one million, nine hundred twenty-four thousand, one hundred sixty-four".