747279972747 has 48 divisors (see below), whose sum is σ = 1345879611648. Its totient is φ = 388160274240.

The previous prime is 747279972721. The next prime is 747279972757.

It is a happy number.

747279972747 is a `hidden beast` number, since 7 + 472 + 7 + 9 + 97 + 27 + 47 = 666.

747279972747 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 747279972747 - 2⁷ = 747279972619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (747279972757) 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, 8140768 + ... + 8232050.

It is an arithmetic number, because the mean of its divisors is an integer number (28039158576).

Almost surely, 2^747279972747 is an apocalyptic number.

747279972747 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

747279972747 is a deficient number, since it is larger than the sum of its proper divisors (598599638901).

747279972747 is a wasteful number, since it uses less digits than its factorization.

747279972747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103120 (or 103117 counting only the distinct ones).

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

The spelling of 747279972747 in words is "seven hundred forty-seven billion, two hundred seventy-nine million, nine hundred seventy-two thousand, seven hundred forty-seven".