677612770398 has 20 divisors (see below), whose sum is σ = 1518354541440. Its totient is φ = 225870923412.

The previous prime is 677612770397. The next prime is 677612770451. The reversal of 677612770398 is 893077216776.

677612770398 is a `hidden beast` number, since 6 + 7 + 7 + 612 + 7 + 7 + 0 + 3 + 9 + 8 = 666.

It is a super-3 number, since 3×677612770398³ (a number of 36 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677612770397) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2091397278 + ... + 2091397601.

It is an arithmetic number, because the mean of its divisors is an integer number (75917727072).

Almost surely, 2^677612770398 is an apocalyptic number.

677612770398 is an abundant number, since it is smaller than the sum of its proper divisors (840741771042).

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

677612770398 is a wasteful number, since it uses less digits than its factorization.

677612770398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182794893 (or 4182794884 counting only the distinct ones).

The product of its (nonzero) digits is 37340352, while the sum is 63.

The spelling of 677612770398 in words is "six hundred seventy-seven billion, six hundred twelve million, seven hundred seventy thousand, three hundred ninety-eight".