25349693892 has 48 divisors (see below), whose sum is σ = 61896078720. Its totient is φ = 8059583488.

The previous prime is 25349693861. The next prime is 25349693921. The reversal of 25349693892 is 29839694352.

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 in 15 ways as a sum of consecutive naturals, for example, 32667 + ... + 227522.

It is an arithmetic number, because the mean of its divisors is an integer number (1289501640).

Almost surely, 2^25349693892 is an apocalyptic number.

It is an amenable number.

25349693892 is an abundant number, since it is smaller than the sum of its proper divisors (36546384828).

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

25349693892 is a wasteful number, since it uses less digits than its factorization.

25349693892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260572 (or 260570 counting only the distinct ones).

The product of its digits is 25194240, while the sum is 60.

The spelling of 25349693892 in words is "twenty-five billion, three hundred forty-nine million, six hundred ninety-three thousand, eight hundred ninety-two".