25189434326 has 16 divisors (see below), whose sum is σ = 43234503840. Its totient is φ = 10782317760.

The previous prime is 25189434313. The next prime is 25189434329. The reversal of 25189434326 is 62343498152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25189434329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1084271 + ... + 1107258.

It is an arithmetic number, because the mean of its divisors is an integer number (2702156490).

Almost surely, 2^25189434326 is an apocalyptic number.

25189434326 is a deficient number, since it is larger than the sum of its proper divisors (18045069514).

25189434326 is a wasteful number, since it uses less digits than its factorization.

25189434326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192359.

The product of its digits is 1244160, while the sum is 47.

The spelling of 25189434326 in words is "twenty-five billion, one hundred eighty-nine million, four hundred thirty-four thousand, three hundred twenty-six".