977133680431 has 4 divisors (see below), whose sum is σ = 1000966209264. Its totient is φ = 953301151600.

The previous prime is 977133680407. The next prime is 977133680477. The reversal of 977133680431 is 134086331779.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 977133680431 - 2¹⁵ = 977133647663 is a prime.

It is a super-2 number, since 2×977133680431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977133684431) 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, 11916264355 + ... + 11916264436.

It is an arithmetic number, because the mean of its divisors is an integer number (250241552316).

Almost surely, 2^977133680431 is an apocalyptic number.

977133680431 is a deficient number, since it is larger than the sum of its proper divisors (23832528833).

977133680431 is a wasteful number, since it uses less digits than its factorization.

977133680431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23832528832.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 977133680431 in words is "nine hundred seventy-seven billion, one hundred thirty-three million, six hundred eighty thousand, four hundred thirty-one".