677920134900 has 72 divisors (see below), whose sum is σ = 2064683094880. Its totient is φ = 171264032640.

The previous prime is 677920134893. The next prime is 677920134901. The reversal of 677920134900 is 9431029776.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 677920134900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677920134901) 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, 59460979 + ... + 59472378.

Almost surely, 2^677920134900 is an apocalyptic number.

677920134900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

677920134900 is an abundant number, since it is smaller than the sum of its proper divisors (1386762959980).

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

677920134900 is a wasteful number, since it uses less digits than its factorization.

677920134900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118933393 (or 118933386 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 48.

The spelling of 677920134900 in words is "six hundred seventy-seven billion, nine hundred twenty million, one hundred thirty-four thousand, nine hundred".