749944502189 has 2 divisors, whose sum is σ = 749944502190. Its totient is φ = 749944502188.

The previous prime is 749944502129. The next prime is 749944502213. The reversal of 749944502189 is 981205449947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 573250379689 + 176694122500 = 757133^2 + 420350^2 .

It is a cyclic number.

It is not a de Polignac number, because 749944502189 - 2²⁰ = 749943453613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749944502119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374972251094 + 374972251095.

It is an arithmetic number, because the mean of its divisors is an integer number (374972251095).

Almost surely, 2^749944502189 is an apocalyptic number.

It is an amenable number.

749944502189 is a deficient number, since it is larger than the sum of its proper divisors (1).

749944502189 is an equidigital number, since it uses as much as digits as its factorization.

749944502189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26127360, while the sum is 62.

The spelling of 749944502189 in words is "seven hundred forty-nine billion, nine hundred forty-four million, five hundred two thousand, one hundred eighty-nine".