25774651380 has 48 divisors (see below), whose sum is σ = 72807706944. Its totient is φ = 6812413440.

The previous prime is 25774651379. The next prime is 25774651417. The reversal of 25774651380 is 8315647752.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1894006 + ... + 1907565.

It is an arithmetic number, because the mean of its divisors is an integer number (1516827228).

Almost surely, 2^25774651380 is an apocalyptic number.

25774651380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25774651380 is an abundant number, since it is smaller than the sum of its proper divisors (47033055564).

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

25774651380 is a wasteful number, since it uses less digits than its factorization.

25774651380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801696 (or 3801694 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 25774651380 in words is "twenty-five billion, seven hundred seventy-four million, six hundred fifty-one thousand, three hundred eighty".