79305767533 has 16 divisors (see below), whose sum is σ = 86388237936. Its totient is φ = 72507535360.

The previous prime is 79305767507. The next prime is 79305767557. The reversal of 79305767533 is 33576750397.

It can be written as a sum of positive squares in 8 ways, for example, as 21591951364 + 57713816169 = 146942^2 + 240237^2 .

It is a cyclic number.

It is not a de Polignac number, because 79305767533 - 2²⁵ = 79272213101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79305767503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81766 + ... + 406567.

It is an arithmetic number, because the mean of its divisors is an integer number (5399264871).

Almost surely, 2^79305767533 is an apocalyptic number.

It is an amenable number.

79305767533 is a deficient number, since it is larger than the sum of its proper divisors (7082470403).

79305767533 is a wasteful number, since it uses less digits than its factorization.

79305767533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488624.

The product of its (nonzero) digits is 12502350, while the sum is 55.

The spelling of 79305767533 in words is "seventy-nine billion, three hundred five million, seven hundred sixty-seven thousand, five hundred thirty-three".