749997799947 has 48 divisors (see below), whose sum is σ = 1215108550656. Its totient is φ = 441820656000.

The previous prime is 749997799939. The next prime is 749997799981.

749997799947 is a `hidden beast` number, since 7 + 499 + 9 + 7 + 79 + 9 + 9 + 47 = 666.

749997799947 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 749997799947 - 2³ = 749997799939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (749997799147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 759078 + ... + 1440900.

It is an arithmetic number, because the mean of its divisors is an integer number (25314761472).

Almost surely, 2^749997799947 is an apocalyptic number.

749997799947 is a deficient number, since it is larger than the sum of its proper divisors (465110750709).

749997799947 is a wasteful number, since it uses less digits than its factorization.

749997799947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682152 (or 682149 counting only the distinct ones).

The product of its digits is 20415837456, while the sum is 90.

The spelling of 749997799947 in words is "seven hundred forty-nine billion, nine hundred ninety-seven million, seven hundred ninety-nine thousand, nine hundred forty-seven".