677956796187 has 8 divisors (see below), whose sum is σ = 986118976320. Its totient is φ = 410882906760.

The previous prime is 677956796177. The next prime is 677956796191. The reversal of 677956796187 is 781697659776.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 677956796187 - 2⁴ = 677956796171 is a prime.

It is a super-2 number, since 2×677956796187² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (677956796107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10272072637 + ... + 10272072702.

It is an arithmetic number, because the mean of its divisors is an integer number (123264872040).

Almost surely, 2^677956796187 is an apocalyptic number.

677956796187 is a deficient number, since it is larger than the sum of its proper divisors (308162180133).

677956796187 is a wasteful number, since it uses less digits than its factorization.

677956796187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20544145353.

The product of its digits is 1680315840, while the sum is 78.

The spelling of 677956796187 in words is "six hundred seventy-seven billion, nine hundred fifty-six million, seven hundred ninety-six thousand, one hundred eighty-seven".