79147085533 has 2 divisors, whose sum is σ = 79147085534. Its totient is φ = 79147085532.

The previous prime is 79147085519. The next prime is 79147085557. The reversal of 79147085533 is 33558074197.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56566914244 + 22580171289 = 237838^2 + 150267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79147085533 is a prime.

It is a super-2 number, since 2×79147085533² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79147085573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39573542766 + 39573542767.

It is an arithmetic number, because the mean of its divisors is an integer number (39573542767).

Almost surely, 2^79147085533 is an apocalyptic number.

It is an amenable number.

79147085533 is a deficient number, since it is larger than the sum of its proper divisors (1).

79147085533 is an equidigital number, since it uses as much as digits as its factorization.

79147085533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 79147085533 in words is "seventy-nine billion, one hundred forty-seven million, eighty-five thousand, five hundred thirty-three".