749118255669 has 48 divisors (see below), whose sum is σ = 1265754785152. Its totient is φ = 417994867584.

The previous prime is 749118255661. The next prime is 749118255671. The reversal of 749118255669 is 966552811947.

749118255669 is a `hidden beast` number, since 7 + 4 + 9 + 1 + 18 + 2 + 556 + 69 = 666.

It is not a de Polignac number, because 749118255669 - 2³ = 749118255661 is a prime.

It is a super-2 number, since 2×749118255669² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749118255661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10075659 + ... + 10149735.

Almost surely, 2^749118255669 is an apocalyptic number.

It is an amenable number.

749118255669 is a deficient number, since it is larger than the sum of its proper divisors (516636529483).

749118255669 is a wasteful number, since it uses less digits than its factorization.

749118255669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77866 (or 77863 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 63.

The spelling of 749118255669 in words is "seven hundred forty-nine billion, one hundred eighteen million, two hundred fifty-five thousand, six hundred sixty-nine".