79902312433 has 4 divisors (see below), whose sum is σ = 79984096740. Its totient is φ = 79820528128.

The previous prime is 79902312431. The next prime is 79902312439. The reversal of 79902312433 is 33421320997.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45886780944 + 34015531489 = 214212^2 + 184433^2 .

It is a cyclic number.

It is not a de Polignac number, because 79902312433 - 2¹ = 79902312431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79902312433.

It is not an unprimeable number, because it can be changed into a prime (79902312431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40890688 + ... + 40892641.

It is an arithmetic number, because the mean of its divisors is an integer number (19996024185).

Almost surely, 2^79902312433 is an apocalyptic number.

It is an amenable number.

79902312433 is a deficient number, since it is larger than the sum of its proper divisors (81784307).

79902312433 is an equidigital number, since it uses as much as digits as its factorization.

79902312433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81784306.

The product of its (nonzero) digits is 244944, while the sum is 43.

The spelling of 79902312433 in words is "seventy-nine billion, nine hundred two million, three hundred twelve thousand, four hundred thirty-three".