977507581114 has 8 divisors (see below), whose sum is σ = 1467207962100. Its totient is φ = 488438260416.

The previous prime is 977507581111. The next prime is 977507581123. The reversal of 977507581114 is 411185705779.

It can be written as a sum of positive squares in 2 ways, for example, as 782614469025 + 194893112089 = 884655^2 + 441467^2 .

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

It is a super-2 number, since 2×977507581114² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (977507581111) 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, 157761199 + ... + 157767394.

Almost surely, 2^977507581114 is an apocalyptic number.

977507581114 is a deficient number, since it is larger than the sum of its proper divisors (489700380986).

977507581114 is a wasteful number, since it uses less digits than its factorization.

977507581114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315530144.

The product of its (nonzero) digits is 2469600, while the sum is 55.

The spelling of 977507581114 in words is "nine hundred seventy-seven billion, five hundred seven million, five hundred eighty-one thousand, one hundred fourteen".