977679134431 has 8 divisors (see below), whose sum is σ = 1029653905280. Its totient is φ = 925756161048.

The previous prime is 977679134401. The next prime is 977679134437. The reversal of 977679134431 is 134431976779.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 977679134431 - 2⁷ = 977679134303 is a prime.

It is a super-2 number, since 2×977679134431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 977679134431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977679134437) 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, 12910611 + ... + 12986116.

It is an arithmetic number, because the mean of its divisors is an integer number (128706738160).

Almost surely, 2^977679134431 is an apocalyptic number.

977679134431 is a deficient number, since it is larger than the sum of its proper divisors (51974770849).

977679134431 is a wasteful number, since it uses less digits than its factorization.

977679134431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25898733.

The product of its digits is 24004512, while the sum is 61.

The spelling of 977679134431 in words is "nine hundred seventy-seven billion, six hundred seventy-nine million, one hundred thirty-four thousand, four hundred thirty-one".