816879746596 has 27 divisors (see below), whose sum is σ = 1480628848881. Its totient is φ = 394330432944.

The previous prime is 816879746581. The next prime is 816879746621. The reversal of 816879746596 is 695647978618.

The square root of 816879746596 is 903814.

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., 428351924196 + 388527822400 = 654486^2 + 623320^2 .

It is a Duffinian number.

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, 52413421 + ... + 52429003.

Almost surely, 2^816879746596 is an apocalyptic number.

816879746596 is the 903814-th square number.

It is an amenable number.

816879746596 is a deficient number, since it is larger than the sum of its proper divisors (663749102285).

816879746596 is an frugal number, since it uses more digits than its factorization.

816879746596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31228 (or 15614 counting only the distinct ones).

The product of its digits is 1097349120, while the sum is 76.

The spelling of 816879746596 in words is "eight hundred sixteen billion, eight hundred seventy-nine million, seven hundred forty-six thousand, five hundred ninety-six".