977709619264 has 63 divisors (see below), whose sum is σ = 2257028315373. Its totient is φ = 418994677248.

The previous prime is 977709619219. The next prime is 977709619277. The reversal of 977709619264 is 462916907779.

The square root of 977709619264 is 988792.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 116881934400 + 860827684864 = 341880^2 + 927808^2 .

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 977709619264.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 55363524 + ... + 55381180.

Almost surely, 2^977709619264 is an apocalyptic number.

977709619264 is the 988792-nd square number.

It is an amenable number.

977709619264 is an abundant number, since it is smaller than the sum of its proper divisors (1279318696109).

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

977709619264 is an frugal number, since it uses more digits than its factorization.

977709619264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35340 (or 17666 counting only the distinct ones).

The product of its (nonzero) digits is 72013536, while the sum is 67.

The spelling of 977709619264 in words is "nine hundred seventy-seven billion, seven hundred nine million, six hundred nineteen thousand, two hundred sixty-four".