25870435834 has 64 divisors (see below), whose sum is σ = 43284326400. Its totient is φ = 11541068352.

The previous prime is 25870435823. The next prime is 25870435847. The reversal of 25870435834 is 43853407852.

It is a super-2 number, since 2×25870435834² (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 31 ways as a sum of consecutive naturals, for example, 36488272 + ... + 36488980.

It is an arithmetic number, because the mean of its divisors is an integer number (676317600).

Almost surely, 2^25870435834 is an apocalyptic number.

25870435834 is a deficient number, since it is larger than the sum of its proper divisors (17413890566).

25870435834 is a wasteful number, since it uses less digits than its factorization.

25870435834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339.

The product of its (nonzero) digits is 3225600, while the sum is 49.

The spelling of 25870435834 in words is "twenty-five billion, eight hundred seventy million, four hundred thirty-five thousand, eight hundred thirty-four".