749270466557 has 2 divisors, whose sum is σ = 749270466558. Its totient is φ = 749270466556.

The previous prime is 749270466521. The next prime is 749270466599. The reversal of 749270466557 is 755664072947.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 687007241881 + 62263224676 = 828859^2 + 249526^2 .

It is a cyclic number.

It is not a de Polignac number, because 749270466557 - 2²⁴ = 749253689341 is a prime.

It is a super-2 number, since 2×749270466557² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 749270466557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749270436557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374635233278 + 374635233279.

It is an arithmetic number, because the mean of its divisors is an integer number (374635233279).

Almost surely, 2^749270466557 is an apocalyptic number.

It is an amenable number.

749270466557 is a deficient number, since it is larger than the sum of its proper divisors (1).

749270466557 is an equidigital number, since it uses as much as digits as its factorization.

749270466557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88905600, while the sum is 62.

The spelling of 749270466557 in words is "seven hundred forty-nine billion, two hundred seventy million, four hundred sixty-six thousand, five hundred fifty-seven".