709672423931 has 2 divisors, whose sum is σ = 709672423932. Its totient is φ = 709672423930.

The previous prime is 709672423903. The next prime is 709672423961. The reversal of 709672423931 is 139324276907.

It is a weak prime.

It is an emirp because it is prime and its reverse (139324276907) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-709672423931 is a prime.

It is a super-2 number, since 2×709672423931² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (709672423961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354836211965 + 354836211966.

It is an arithmetic number, because the mean of its divisors is an integer number (354836211966).

Almost surely, 2^709672423931 is an apocalyptic number.

709672423931 is a deficient number, since it is larger than the sum of its proper divisors (1).

709672423931 is an equidigital number, since it uses as much as digits as its factorization.

709672423931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3429216, while the sum is 53.

The spelling of 709672423931 in words is "seven hundred nine billion, six hundred seventy-two million, four hundred twenty-three thousand, nine hundred thirty-one".