749081955289 has 2 divisors, whose sum is σ = 749081955290. Its totient is φ = 749081955288.

The previous prime is 749081955263. The next prime is 749081955331. The reversal of 749081955289 is 982559180947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 479313905625 + 269768049664 = 692325^2 + 519392^2 .

It is a cyclic number.

It is not a de Polignac number, because 749081955289 - 2⁷ = 749081955161 is a prime.

It is a super-2 number, since 2×749081955289² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (749081955229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374540977644 + 374540977645.

It is an arithmetic number, because the mean of its divisors is an integer number (374540977645).

Almost surely, 2^749081955289 is an apocalyptic number.

It is an amenable number.

749081955289 is a deficient number, since it is larger than the sum of its proper divisors (1).

749081955289 is an equidigital number, since it uses as much as digits as its factorization.

749081955289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65318400, while the sum is 67.

The spelling of 749081955289 in words is "seven hundred forty-nine billion, eighty-one million, nine hundred fifty-five thousand, two hundred eighty-nine".