25279790382 has 48 divisors (see below), whose sum is σ = 68288268672. Its totient is φ = 6566178960.

The previous prime is 25279790299. The next prime is 25279790387. The reversal of 25279790382 is 28309797252.

25279790382 is a `hidden beast` number, since 252 + 7 + 9 + 7 + 9 + 0 + 382 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25279790387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9118308 + ... + 9121079.

It is an arithmetic number, because the mean of its divisors is an integer number (1422672264).

Almost surely, 2^25279790382 is an apocalyptic number.

25279790382 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25279790382 is an abundant number, since it is smaller than the sum of its proper divisors (43008478290).

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

25279790382 is a wasteful number, since it uses less digits than its factorization.

25279790382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18239413 (or 18239410 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 25279790382 in words is "twenty-five billion, two hundred seventy-nine million, seven hundred ninety thousand, three hundred eighty-two".