25326634616 has 8 divisors (see below), whose sum is σ = 47487439920. Its totient is φ = 12663317304.

The previous prime is 25326634601. The next prime is 25326634637. The reversal of 25326634616 is 61643662352.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1582914656 + ... + 1582914671.

It is an arithmetic number, because the mean of its divisors is an integer number (5935929990).

Almost surely, 2^25326634616 is an apocalyptic number.

It is an amenable number.

25326634616 is a deficient number, since it is larger than the sum of its proper divisors (22160805304).

25326634616 is a wasteful number, since it uses less digits than its factorization.

25326634616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165829333 (or 3165829329 counting only the distinct ones).

The product of its digits is 933120, while the sum is 44.

The spelling of 25326634616 in words is "twenty-five billion, three hundred twenty-six million, six hundred thirty-four thousand, six hundred sixteen".