677874478776 has 64 divisors (see below), whose sum is σ = 1849790234880. Its totient is φ = 205300769280.

The previous prime is 677874478769. The next prime is 677874478811.

677874478776 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253356 + ... + 1191611.

It is an arithmetic number, because the mean of its divisors is an integer number (28902972420).

Almost surely, 2^677874478776 is an apocalyptic number.

677874478776 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

677874478776 is an abundant number, since it is smaller than the sum of its proper divisors (1171915756104).

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

677874478776 is a wasteful number, since it uses less digits than its factorization.

677874478776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446764 (or 1446760 counting only the distinct ones).

The product of its digits is 4337012736, while the sum is 78.

The spelling of 677874478776 in words is "six hundred seventy-seven billion, eight hundred seventy-four million, four hundred seventy-eight thousand, seven hundred seventy-six".