56365998739 has 2 divisors, whose sum is σ = 56365998740. Its totient is φ = 56365998738.

The previous prime is 56365998673. The next prime is 56365998769. The reversal of 56365998739 is 93789956365.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56365998739 is a prime.

It is not a weakly prime, because it can be changed into another prime (56365998769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28182999369 + 28182999370.

It is an arithmetic number, because the mean of its divisors is an integer number (28182999370).

Almost surely, 2^56365998739 is an apocalyptic number.

56365998739 is a deficient number, since it is larger than the sum of its proper divisors (1).

56365998739 is an equidigital number, since it uses as much as digits as its factorization.

56365998739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 330674400, while the sum is 70.

The spelling of 56365998739 in words is "fifty-six billion, three hundred sixty-five million, nine hundred ninety-eight thousand, seven hundred thirty-nine".