799632261121 has 16 divisors (see below), whose sum is σ = 847415192400. Its totient is φ = 753503800320.

The previous prime is 799632261049. The next prime is 799632261149. The reversal of 799632261121 is 121162236997.

It can be written as a sum of positive squares in 8 ways, for example, as 85039308225 + 714592952896 = 291615^2 + 845336^2 .

It is a cyclic number.

It is not a de Polignac number, because 799632261121 - 2²⁵ = 799598706689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (799632261521) 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, 1715946 + ... + 2131603.

It is an arithmetic number, because the mean of its divisors is an integer number (52963449525).

Almost surely, 2^799632261121 is an apocalyptic number.

It is an amenable number.

799632261121 is a deficient number, since it is larger than the sum of its proper divisors (47782931279).

799632261121 is a wasteful number, since it uses less digits than its factorization.

799632261121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847764.

The product of its digits is 489888, while the sum is 49.

The spelling of 799632261121 in words is "seven hundred ninety-nine billion, six hundred thirty-two million, two hundred sixty-one thousand, one hundred twenty-one".