712742866081 has 9 divisors (see below), whose sum is σ = 717622629969. Its totient is φ = 707896078500.

The previous prime is 712742866079. The next prime is 712742866117. The reversal of 712742866081 is 180668247217.

The square root of 712742866081 is 844241.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 712742866081 - 2¹ = 712742866079 is a prime.

It is a super-2 number, since 2×712742866081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712742866481) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 127477596 + ... + 127483186.

Almost surely, 2^712742866081 is an apocalyptic number.

712742866081 is the 844241-st square number.

712742866081 is the 422121-st centered octagonal number.

It is an amenable number.

712742866081 is a deficient number, since it is larger than the sum of its proper divisors (4879763888).

712742866081 is an frugal number, since it uses more digits than its factorization.

712742866081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11484 (or 5742 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 52.

The spelling of 712742866081 in words is "seven hundred twelve billion, seven hundred forty-two million, eight hundred sixty-six thousand, eighty-one".