7797312242 has 16 divisors (see below), whose sum is σ = 12386169432. Its totient is φ = 3668670720.

The previous prime is 7797312241. The next prime is 7797312307. The reversal of 7797312242 is 2422137977.

It can be written as a sum of positive squares in 4 ways, for example, as 7211236561 + 586075681 = 84919^2 + 24209^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7797312193 and 7797312202.

It is not an unprimeable number, because it can be changed into a prime (7797312241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211892 + ... + 245952.

Almost surely, 2^7797312242 is an apocalyptic number.

7797312242 is a deficient number, since it is larger than the sum of its proper divisors (4588857190).

7797312242 is a wasteful number, since it uses less digits than its factorization.

7797312242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40813.

The product of its digits is 296352, while the sum is 44.

The square root of 7797312242 is about 88302.3909189327. The cubic root of 7797312242 is about 1982.9646641411.

The spelling of 7797312242 in words is "seven billion, seven hundred ninety-seven million, three hundred twelve thousand, two hundred forty-two".