749772277947 has 72 divisors (see below), whose sum is σ = 1360762061568. Its totient is φ = 389408009760.

The previous prime is 749772277873. The next prime is 749772278023.

It is a happy number.

749772277947 is a `hidden beast` number, since 7 + 497 + 7 + 2 + 27 + 79 + 47 = 666.

749772277947 is nontrivially palindromic in base 10.

749772277947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 749772277947 - 2⁷ = 749772277819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (749772277147) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 52035018 + ... + 52049424.

Almost surely, 2^749772277947 is an apocalyptic number.

749772277947 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

749772277947 is a deficient number, since it is larger than the sum of its proper divisors (610989783621).

749772277947 is a wasteful number, since it uses less digits than its factorization.

749772277947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21269 (or 21255 counting only the distinct ones).

The product of its digits is 609892416, while the sum is 72.

The spelling of 749772277947 in words is "seven hundred forty-nine billion, seven hundred seventy-two million, two hundred seventy-seven thousand, nine hundred forty-seven".