13425561838 has 32 divisors (see below), whose sum is σ = 22211483616. Its totient is φ = 6048442368.

The previous prime is 13425561769. The next prime is 13425561847. The reversal of 13425561838 is 83816552431.

It is a congruent number.

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, 147645 + ... + 220567.

It is an arithmetic number, because the mean of its divisors is an integer number (694108863).

Almost surely, 2^13425561838 is an apocalyptic number.

13425561838 is a deficient number, since it is larger than the sum of its proper divisors (8785921778).

13425561838 is a wasteful number, since it uses less digits than its factorization.

13425561838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73108.

The product of its digits is 691200, while the sum is 46.

The spelling of 13425561838 in words is "thirteen billion, four hundred twenty-five million, five hundred sixty-one thousand, eight hundred thirty-eight".