25290780912 has 30 divisors (see below), whose sum is σ = 70779060872. Its totient is φ = 8430260256.

The previous prime is 25290780859. The next prime is 25290780919. The reversal of 25290780912 is 21908709252.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25290780919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87815068 + ... + 87815355.

Almost surely, 2^25290780912 is an apocalyptic number.

It is an amenable number.

25290780912 is an abundant number, since it is smaller than the sum of its proper divisors (45488279960).

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

25290780912 is a wasteful number, since it uses less digits than its factorization.

25290780912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175630437 (or 175630428 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 25290780912 in words is "twenty-five billion, two hundred ninety million, seven hundred eighty thousand, nine hundred twelve".