7479997574378 has 96 divisors (see below), whose sum is σ = 13769031628800. Its totient is φ = 3030311088000.

The previous prime is 7479997574377. The next prime is 7479997574419. The reversal of 7479997574378 is 8734757999747.

It is a self number, because there is not a number n which added to its sum of digits gives 7479997574378.

It is not an unprimeable number, because it can be changed into a prime (7479997574377) 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, 2016713588 + ... + 2016717296.

It is an arithmetic number, because the mean of its divisors is an integer number (143427412800).

Almost surely, 2^{7479997574378} is an apocalyptic number.

7479997574378 is a deficient number, since it is larger than the sum of its proper divisors (6289034054422).

7479997574378 is a wasteful number, since it uses less digits than its factorization.

7479997574378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5836 (or 5829 counting only the distinct ones).

The product of its digits is 23524421760, while the sum is 86.

The spelling of 7479997574378 in words is "seven trillion, four hundred seventy-nine billion, nine hundred ninety-seven million, five hundred seventy-four thousand, three hundred seventy-eight".