749139398349 has 8 divisors (see below), whose sum is σ = 998856919200. Its totient is φ = 499424071536.

The previous prime is 749139398321. The next prime is 749139398369. The reversal of 749139398349 is 943893931947.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 749139398349 - 2⁷ = 749139398221 is a prime.

It is a super-2 number, since 2×749139398349² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749139398369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579714 + ... + 1354380.

It is an arithmetic number, because the mean of its divisors is an integer number (124857114900).

Almost surely, 2^749139398349 is an apocalyptic number.

It is an amenable number.

749139398349 is a deficient number, since it is larger than the sum of its proper divisors (249717520851).

749139398349 is a wasteful number, since it uses less digits than its factorization.

749139398349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097019.

The product of its digits is 158723712, while the sum is 69.

The spelling of 749139398349 in words is "seven hundred forty-nine billion, one hundred thirty-nine million, three hundred ninety-eight thousand, three hundred forty-nine".