677256173320 has 32 divisors (see below), whose sum is σ = 1523975935320. Its totient is φ = 270875883520.

The previous prime is 677256173309. The next prime is 677256173389. The reversal of 677256173320 is 23371652776.

It can be written as a sum of positive squares in 4 ways, for example, as 312568210084 + 364687963236 = 559078^2 + 603894^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415561 + ... + 1235800.

Almost surely, 2^677256173320 is an apocalyptic number.

It is an amenable number.

677256173320 is an abundant number, since it is smaller than the sum of its proper divisors (846719762000).

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

677256173320 is a wasteful number, since it uses less digits than its factorization.

677256173320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661625 (or 1661621 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 49.

The spelling of 677256173320 in words is "six hundred seventy-seven billion, two hundred fifty-six million, one hundred seventy-three thousand, three hundred twenty".