7479997574377 has 2 divisors, whose sum is σ = 7479997574378. Its totient is φ = 7479997574376.

The previous prime is 7479997574363. The next prime is 7479997574419. The reversal of 7479997574377 is 7734757999747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5196526008921 + 2283471565456 = 2279589^2 + 1511116^2 .

It is a cyclic number.

It is not a de Polignac number, because 7479997574377 - 2¹⁵ = 7479997541609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7479997574294 and 7479997574303.

It is not a weakly prime, because it can be changed into another prime (7479997574317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3739998787188 + 3739998787189.

It is an arithmetic number, because the mean of its divisors is an integer number (3739998787189).

Almost surely, 2^{7479997574377} is an apocalyptic number.

It is an amenable number.

7479997574377 is a deficient number, since it is larger than the sum of its proper divisors (1).

7479997574377 is an equidigital number, since it uses as much as digits as its factorization.

7479997574377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20583869040, while the sum is 85.

The spelling of 7479997574377 in words is "seven trillion, four hundred seventy-nine billion, nine hundred ninety-seven million, five hundred seventy-four thousand, three hundred seventy-seven".