977518513458 has 48 divisors (see below), whose sum is σ = 2122154400600. Its totient is φ = 325194186240.

The previous prime is 977518513457. The next prime is 977518513469. The reversal of 977518513458 is 854315815779.

It is a happy number.

977518513458 is a `hidden beast` number, since 9 + 7 + 75 + 1 + 8 + 513 + 45 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 568541636289 + 408976877169 = 754017^2 + 639513^2 .

It is a junction number, because it is equal to n+sod(n) for n = 977518513395 and 977518513404.

It is not an unprimeable number, because it can be changed into a prime (977518513457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26978458 + ... + 27014666.

Almost surely, 2^977518513458 is an apocalyptic number.

977518513458 is an abundant number, since it is smaller than the sum of its proper divisors (1144635887142).

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

977518513458 is a wasteful number, since it uses less digits than its factorization.

977518513458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39147 (or 39144 counting only the distinct ones).

The product of its digits is 42336000, while the sum is 63.

The spelling of 977518513458 in words is "nine hundred seventy-seven billion, five hundred eighteen million, five hundred thirteen thousand, four hundred fifty-eight".