749777185613 has 2 divisors, whose sum is σ = 749777185614. Its totient is φ = 749777185612.

The previous prime is 749777185499. The next prime is 749777185667. The reversal of 749777185613 is 316581777947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 571412022724 + 178365162889 = 755918^2 + 422333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749777185613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 749777185613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749777185673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374888592806 + 374888592807.

It is an arithmetic number, because the mean of its divisors is an integer number (374888592807).

Almost surely, 2^749777185613 is an apocalyptic number.

It is an amenable number.

749777185613 is a deficient number, since it is larger than the sum of its proper divisors (1).

749777185613 is an equidigital number, since it uses as much as digits as its factorization.

749777185613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62233920, while the sum is 65.

The spelling of 749777185613 in words is "seven hundred forty-nine billion, seven hundred seventy-seven million, one hundred eighty-five thousand, six hundred thirteen".