25740049464 has 48 divisors (see below), whose sum is σ = 70855476120. Its totient is φ = 8439359040.

The previous prime is 25740049459. The next prime is 25740049507. The reversal of 25740049464 is 46494004752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2925942 + ... + 2934725.

Almost surely, 2^25740049464 is an apocalyptic number.

25740049464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25740049464 is an abundant number, since it is smaller than the sum of its proper divisors (45115426656).

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

25740049464 is a wasteful number, since it uses less digits than its factorization.

25740049464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5860740 (or 5860733 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 25740049464 in words is "twenty-five billion, seven hundred forty million, forty-nine thousand, four hundred sixty-four".