11812646596 has 27 divisors (see below), whose sum is σ = 21372677613. Its totient is φ = 5712536160.

The previous prime is 11812646561. The next prime is 11812646687. The reversal of 11812646596 is 69564621811.

It is a happy number.

The square root of 11812646596 is 108686.

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., 334524100 + 11478122496 = 18290^2 + 107136^2 .

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, 6737656 + ... + 6739408.

Almost surely, 2^11812646596 is an apocalyptic number.

11812646596 is the 108686-th square number.

It is an amenable number.

11812646596 is a deficient number, since it is larger than the sum of its proper divisors (9560031017).

11812646596 is an frugal number, since it uses more digits than its factorization.

11812646596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3572 (or 1786 counting only the distinct ones).

The product of its digits is 622080, while the sum is 49.

Multiplying 11812646596 by its sum of digits (49), we get a square (578819683204 = 760802²).

The spelling of 11812646596 in words is "eleven billion, eight hundred twelve million, six hundred forty-six thousand, five hundred ninety-six".