7992021105313 has 24 divisors (see below), whose sum is σ = 9320151327144. Its totient is φ = 6833132006400.

The previous prime is 7992021105241. The next prime is 7992021105319. The reversal of 7992021105313 is 3135011202997.

It can be written as a sum of positive squares in 4 ways, for example, as 261435870864 + 7730585234449 = 511308^2 + 2780393^2 .

It is not a de Polignac number, because 7992021105313 - 2³³ = 7983431170721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7992021105313.

It is not an unprimeable number, because it can be changed into a prime (7992021105319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191354353 + ... + 191396113.

It is an arithmetic number, because the mean of its divisors is an integer number (388339638631).

Almost surely, 2^{7992021105313} is an apocalyptic number.

It is an amenable number.

7992021105313 is a deficient number, since it is larger than the sum of its proper divisors (1328130221831).

7992021105313 is a wasteful number, since it uses less digits than its factorization.

7992021105313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51473 (or 51466 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 43.

The spelling of 7992021105313 in words is "seven trillion, nine hundred ninety-two billion, twenty-one million, one hundred five thousand, three hundred thirteen".