25373666940 has 48 divisors (see below), whose sum is σ = 71054329248. Its totient is φ = 6765543424.

The previous prime is 25373666921. The next prime is 25373666947. The reversal of 25373666940 is 4966637352.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25373666947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679804 + ... + 716156.

It is an arithmetic number, because the mean of its divisors is an integer number (1480298526).

Almost surely, 2^25373666940 is an apocalyptic number.

25373666940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25373666940 is an abundant number, since it is smaller than the sum of its proper divisors (45680662308).

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

25373666940 is a wasteful number, since it uses less digits than its factorization.

25373666940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47998 (or 47996 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 51.

The spelling of 25373666940 in words is "twenty-five billion, three hundred seventy-three million, six hundred sixty-six thousand, nine hundred forty".