25919132380 has 12 divisors (see below), whose sum is σ = 54430178040. Its totient is φ = 10367652944.

The previous prime is 25919132363. The next prime is 25919132381. The reversal of 25919132380 is 8323191952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25919132381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647978290 + ... + 647978329.

It is an arithmetic number, because the mean of its divisors is an integer number (4535848170).

Almost surely, 2^25919132380 is an apocalyptic number.

25919132380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25919132380 is an abundant number, since it is smaller than the sum of its proper divisors (28511045660).

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

25919132380 is a wasteful number, since it uses less digits than its factorization.

25919132380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295956628 (or 1295956626 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 25919132380 in words is "twenty-five billion, nine hundred nineteen million, one hundred thirty-two thousand, three hundred eighty".