79455113531 has 2 divisors, whose sum is σ = 79455113532. Its totient is φ = 79455113530.

The previous prime is 79455113489. The next prime is 79455113561. The reversal of 79455113531 is 13531155497.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79455113531 - 2⁶ = 79455113467 is a prime.

It is a super-2 number, since 2×79455113531² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79455113561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39727556765 + 39727556766.

It is an arithmetic number, because the mean of its divisors is an integer number (39727556766).

Almost surely, 2^79455113531 is an apocalyptic number.

79455113531 is a deficient number, since it is larger than the sum of its proper divisors (1).

79455113531 is an equidigital number, since it uses as much as digits as its factorization.

79455113531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 283500, while the sum is 44.

The spelling of 79455113531 in words is "seventy-nine billion, four hundred fifty-five million, one hundred thirteen thousand, five hundred thirty-one".