768225513565442 has 16 divisors (see below), whose sum is σ = 1222152064350912. Its totient is φ = 361389051283920.

The previous prime is 768225513565441. The next prime is 768225513565451. The reversal of 768225513565442 is 244565315522867.

It is a super-2 number, since 2×768225513565442² (a number of 31 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (768225513565441) 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, 136889789348 + ... + 136889794959.

It is an arithmetic number, because the mean of its divisors is an integer number (76384504021932).

Almost surely, 2^{768225513565442} is an apocalyptic number.

768225513565442 is a deficient number, since it is larger than the sum of its proper divisors (453926550785470).

768225513565442 is a wasteful number, since it uses less digits than its factorization.

768225513565442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273779584393.

The product of its digits is 483840000, while the sum is 65.

The spelling of 768225513565442 in words is "seven hundred sixty-eight trillion, two hundred twenty-five billion, five hundred thirteen million, five hundred sixty-five thousand, four hundred forty-two".