25798091382 has 64 divisors (see below), whose sum is σ = 67778265600. Its totient is φ = 7116711840.

The previous prime is 25798091369. The next prime is 25798091387. The reversal of 25798091382 is 28319089752.

25798091382 is a `hidden beast` number, since 257 + 9 + 8 + 0 + 9 + 1 + 382 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25798091387) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1165744 + ... + 1187667.

It is an arithmetic number, because the mean of its divisors is an integer number (1059035400).

Almost surely, 2^25798091382 is an apocalyptic number.

25798091382 is an abundant number, since it is smaller than the sum of its proper divisors (41980174218).

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

25798091382 is a wasteful number, since it uses less digits than its factorization.

25798091382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353458 (or 2353452 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 25798091382 in words is "twenty-five billion, seven hundred ninety-eight million, ninety-one thousand, three hundred eighty-two".