25776172672242 has 32 divisors (see below), whose sum is σ = 53459687478912. Its totient is φ = 8278676285184.

The previous prime is 25776172672207. The next prime is 25776172672339. The reversal of 25776172672242 is 24227627167752.

It is a super-2 number, since 2×25776172672242² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563612503 + ... + 563658234.

It is an arithmetic number, because the mean of its divisors is an integer number (1670615233716).

Almost surely, 2^{25776172672242} is an apocalyptic number.

25776172672242 is an abundant number, since it is smaller than the sum of its proper divisors (27683514806670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25776172672242 is a wasteful number, since it uses less digits than its factorization.

25776172672242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127270882.

The product of its digits is 55319040, while the sum is 60.

The spelling of 25776172672242 in words is "twenty-five trillion, seven hundred seventy-six billion, one hundred seventy-two million, six hundred seventy-two thousand, two hundred forty-two".