25135096986 has 64 divisors (see below), whose sum is σ = 57384754560. Its totient is φ = 8150209920.

The previous prime is 25135096937. The next prime is 25135096991. The reversal of 25135096986 is 68969053152.

It is a happy number.

25135096986 is a `hidden beast` number, since 2 + 51 + 3 + 509 + 6 + 9 + 86 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 751900 + ... + 784616.

It is an arithmetic number, because the mean of its divisors is an integer number (896636790).

Almost surely, 2^25135096986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25135096986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28692377280).

25135096986 is an abundant number, since it is smaller than the sum of its proper divisors (32249657574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25135096986 is a wasteful number, since it uses less digits than its factorization.

25135096986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33116 (or 33110 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 25135096986 in words is "twenty-five billion, one hundred thirty-five million, ninety-six thousand, nine hundred eighty-six".