11715212494864 has 20 divisors (see below), whose sum is σ = 22698277265020. Its totient is φ = 5857592555520.

The previous prime is 11715212494859. The next prime is 11715212494873. The reversal of 11715212494864 is 46849421251711.

It can be written as a sum of positive squares in 2 ways, for example, as 4018982467600 + 7696230027264 = 2004740^2 + 2774208^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13100104 + ... + 13965784.

It is an arithmetic number, because the mean of its divisors is an integer number (1134913863251).

Almost surely, 2^{11715212494864} is an apocalyptic number.

It is an amenable number.

11715212494864 is a deficient number, since it is larger than the sum of its proper divisors (10983064770156).

11715212494864 is an equidigital number, since it uses as much as digits as its factorization.

11715212494864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711498 (or 1711492 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 55.

The spelling of 11715212494864 in words is "eleven trillion, seven hundred fifteen billion, two hundred twelve million, four hundred ninety-four thousand, eight hundred sixty-four".