79053317531 has 2 divisors, whose sum is σ = 79053317532. Its totient is φ = 79053317530.

The previous prime is 79053317491. The next prime is 79053317561. The reversal of 79053317531 is 13571335097.

It is a strong prime.

It is an emirp because it is prime and its reverse (13571335097) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79053317531 - 2³⁴ = 61873448347 is a prime.

It is a super-2 number, since 2×79053317531² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79053317561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39526658765 + 39526658766.

It is an arithmetic number, because the mean of its divisors is an integer number (39526658766).

Almost surely, 2^79053317531 is an apocalyptic number.

79053317531 is a deficient number, since it is larger than the sum of its proper divisors (1).

79053317531 is an equidigital number, since it uses as much as digits as its factorization.

79053317531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 297675, while the sum is 44.

The spelling of 79053317531 in words is "seventy-nine billion, fifty-three million, three hundred seventeen thousand, five hundred thirty-one".