25478556170942 has 16 divisors (see below), whose sum is σ = 43683292578912. Its totient is φ = 10917939287520.

The previous prime is 25478556170927. The next prime is 25478556170953. The reversal of 25478556170942 is 24907165587452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120050909 + ... + 120262952.

It is an arithmetic number, because the mean of its divisors is an integer number (2730205786182).

Almost surely, 2^{25478556170942} is an apocalyptic number.

25478556170942 is a deficient number, since it is larger than the sum of its proper divisors (18204736407970).

25478556170942 is a wasteful number, since it uses less digits than its factorization.

25478556170942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240321443.

The product of its (nonzero) digits is 169344000, while the sum is 65.

The spelling of 25478556170942 in words is "twenty-five trillion, four hundred seventy-eight billion, five hundred fifty-six million, one hundred seventy thousand, nine hundred forty-two".