12972996611 has 4 divisors (see below), whose sum is σ = 13101442224. Its totient is φ = 12844551000.

The previous prime is 12972996593. The next prime is 12972996649. The reversal of 12972996611 is 11669927921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12972996611 - 2²⁶ = 12905887747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12972936611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64222655 + ... + 64222856.

It is an arithmetic number, because the mean of its divisors is an integer number (3275360556).

Almost surely, 2^12972996611 is an apocalyptic number.

12972996611 is a deficient number, since it is larger than the sum of its proper divisors (128445613).

12972996611 is a wasteful number, since it uses less digits than its factorization.

12972996611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128445612.

The product of its digits is 734832, while the sum is 53.

The spelling of 12972996611 in words is "twelve billion, nine hundred seventy-two million, nine hundred ninety-six thousand, six hundred eleven".