677937138369 has 4 divisors (see below), whose sum is σ = 903916184496. Its totient is φ = 451958092244.

The previous prime is 677937138337. The next prime is 677937138371. The reversal of 677937138369 is 963831739776.

677937138369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 677937138369 - 2⁵ = 677937138337 is a prime.

It is a super-2 number, since 2×677937138369² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (677937138379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112989523059 + ... + 112989523064.

It is an arithmetic number, because the mean of its divisors is an integer number (225979046124).

Almost surely, 2^677937138369 is an apocalyptic number.

It is an amenable number.

677937138369 is a deficient number, since it is larger than the sum of its proper divisors (225979046127).

677937138369 is a wasteful number, since it uses less digits than its factorization.

677937138369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225979046126.

The product of its digits is 216040608, while the sum is 69.

The spelling of 677937138369 in words is "six hundred seventy-seven billion, nine hundred thirty-seven million, one hundred thirty-eight thousand, three hundred sixty-nine".