749615516947 has 16 divisors (see below), whose sum is σ = 835180657920. Its totient is φ = 667014805600.

The previous prime is 749615516891. The next prime is 749615516971.

749615516947 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 749615516947 - 2³⁵ = 715255778579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (749615516347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1290079 + ... + 1778632.

It is an arithmetic number, because the mean of its divisors is an integer number (52198791120).

Almost surely, 2^749615516947 is an apocalyptic number.

749615516947 is a deficient number, since it is larger than the sum of its proper divisors (85565140973).

749615516947 is a wasteful number, since it uses less digits than its factorization.

749615516947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3069194.

The product of its digits is 57153600, while the sum is 64.

The spelling of 749615516947 in words is "seven hundred forty-nine billion, six hundred fifteen million, five hundred sixteen thousand, nine hundred forty-seven".