747879978747 has 8 divisors (see below), whose sum is σ = 1087825423680. Its totient is φ = 453260593160.

The previous prime is 747879978719. The next prime is 747879978779.

747879978747 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 747879978747 - 2²⁶ = 747812869883 is a prime.

It is a super-2 number, since 2×747879978747² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 747879978747.

It is not an unprimeable number, because it can be changed into a prime (747879978347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11331514797 + ... + 11331514862.

It is an arithmetic number, because the mean of its divisors is an integer number (135978177960).

Almost surely, 2^747879978747 is an apocalyptic number.

747879978747 is a deficient number, since it is larger than the sum of its proper divisors (339945444933).

747879978747 is a wasteful number, since it uses less digits than its factorization.

747879978747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22663029673.

The product of its digits is 9758278656, while the sum is 84.

The spelling of 747879978747 in words is "seven hundred forty-seven billion, eight hundred seventy-nine million, nine hundred seventy-eight thousand, seven hundred forty-seven".