749897189019 has 12 divisors (see below), whose sum is σ = 1181656176792. Its totient is φ = 454483144800.

The previous prime is 749897188991. The next prime is 749897189021. The reversal of 749897189019 is 910981798947.

It is not a de Polignac number, because 749897189019 - 2⁷ = 749897188891 is a prime.

It is a super-2 number, since 2×749897189019² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (749897189039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3787359442 + ... + 3787359639.

It is an arithmetic number, because the mean of its divisors is an integer number (98471348066).

Almost surely, 2^749897189019 is an apocalyptic number.

749897189019 is a deficient number, since it is larger than the sum of its proper divisors (431758987773).

749897189019 is a wasteful number, since it uses less digits than its factorization.

749897189019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7574719098 (or 7574719095 counting only the distinct ones).

The product of its (nonzero) digits is 82301184, while the sum is 72.

The spelling of 749897189019 in words is "seven hundred forty-nine billion, eight hundred ninety-seven million, one hundred eighty-nine thousand, nineteen".