691992530596 has 6 divisors (see below), whose sum is σ = 1210986928550. Its totient is φ = 345996265296.

The previous prime is 691992530539. The next prime is 691992530653. The reversal of 691992530596 is 695035299196.

It is an interprime number because it is at equal distance from previous prime (691992530539) and next prime (691992530653).

It can be written as a sum of positive squares in only one way, i.e., 577250452900 + 114742077696 = 759770^2 + 338736^2 .

It is a super-2 number, since 2×691992530596² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86499066321 + ... + 86499066328.

Almost surely, 2^691992530596 is an apocalyptic number.

It is an amenable number.

691992530596 is a deficient number, since it is larger than the sum of its proper divisors (518994397954).

691992530596 is a wasteful number, since it uses less digits than its factorization.

691992530596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172998132653 (or 172998132651 counting only the distinct ones).

The product of its (nonzero) digits is 35429400, while the sum is 64.

The spelling of 691992530596 in words is "six hundred ninety-one billion, nine hundred ninety-two million, five hundred thirty thousand, five hundred ninety-six".