25780541340 has 48 divisors (see below), whose sum is σ = 72201507840. Its totient is φ = 6873288000.

The previous prime is 25780541329. The next prime is 25780541359. The reversal of 25780541340 is 4314508752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239841 + ... + 330279.

It is an arithmetic number, because the mean of its divisors is an integer number (1504198080).

Almost surely, 2^25780541340 is an apocalyptic number.

25780541340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25780541340 is an abundant number, since it is smaller than the sum of its proper divisors (46420966500).

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

25780541340 is a wasteful number, since it uses less digits than its factorization.

25780541340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95202 (or 95200 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The spelling of 25780541340 in words is "twenty-five billion, seven hundred eighty million, five hundred forty-one thousand, three hundred forty".