749169198819 has 24 divisors (see below), whose sum is σ = 1117084006272. Its totient is φ = 483316277760.

The previous prime is 749169198793. The next prime is 749169198857. The reversal of 749169198819 is 918891961947.

It is a happy number.

It is not a de Polignac number, because 749169198819 - 2¹¹ = 749169196771 is a prime.

It is a super-2 number, since 2×749169198819² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (749169198119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13575667 + ... + 13630739.

It is an arithmetic number, because the mean of its divisors is an integer number (46545166928).

Almost surely, 2^749169198819 is an apocalyptic number.

749169198819 is a deficient number, since it is larger than the sum of its proper divisors (367914807453).

749169198819 is a wasteful number, since it uses less digits than its factorization.

749169198819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103867 (or 103864 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 72.

The spelling of 749169198819 in words is "seven hundred forty-nine billion, one hundred sixty-nine million, one hundred ninety-eight thousand, eight hundred nineteen".