25627838434 has 32 divisors (see below), whose sum is σ = 43124098752. Its totient is φ = 11319912000.

The previous prime is 25627838399. The next prime is 25627838461. The reversal of 25627838434 is 43483872652.

It is a super-2 number, since 2×25627838434² (a number of 22 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, 640744 + ... + 679564.

It is an arithmetic number, because the mean of its divisors is an integer number (1347628086).

Almost surely, 2^25627838434 is an apocalyptic number.

25627838434 is a deficient number, since it is larger than the sum of its proper divisors (17496260318).

25627838434 is a wasteful number, since it uses less digits than its factorization.

25627838434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39682.

The product of its digits is 7741440, while the sum is 52.

The spelling of 25627838434 in words is "twenty-five billion, six hundred twenty-seven million, eight hundred thirty-eight thousand, four hundred thirty-four".