749026442889 has 32 divisors (see below), whose sum is σ = 1154484142080. Its totient is φ = 479437736400.

The previous prime is 749026442887. The next prime is 749026442903. The reversal of 749026442889 is 988244620947.

749026442889 is a `hidden beast` number, since 7 + 4 + 90 + 26 + 442 + 8 + 89 = 666.

It is not a de Polignac number, because 749026442889 - 2¹ = 749026442887 is a prime.

It is a super-2 number, since 2×749026442889² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (749026442887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3416907 + ... + 3629504.

It is an arithmetic number, because the mean of its divisors is an integer number (36077629440).

Almost surely, 2^749026442889 is an apocalyptic number.

It is an amenable number.

749026442889 is a deficient number, since it is larger than the sum of its proper divisors (405457699191).

749026442889 is a wasteful number, since it uses less digits than its factorization.

749026442889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7046578 (or 7046572 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 749026442889 in words is "seven hundred forty-nine billion, twenty-six million, four hundred forty-two thousand, eight hundred eighty-nine".