712216520051 has 4 divisors (see below), whose sum is σ = 712259578632. Its totient is φ = 712173461472.

The previous prime is 712216520023. The next prime is 712216520083. The reversal of 712216520051 is 150025612217.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-712216520051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712216520651) 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, 21504470 + ... + 21537563.

It is an arithmetic number, because the mean of its divisors is an integer number (178064894658).

Almost surely, 2^712216520051 is an apocalyptic number.

712216520051 is a deficient number, since it is larger than the sum of its proper divisors (43058581).

712216520051 is a wasteful number, since it uses less digits than its factorization.

712216520051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43058580.

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 712216520051 in words is "seven hundred twelve billion, two hundred sixteen million, five hundred twenty thousand, fifty-one".