25369395381 has 48 divisors (see below), whose sum is σ = 40984175232. Its totient is φ = 14988249600.

The previous prime is 25369395379. The next prime is 25369395419. The reversal of 25369395381 is 18359396352.

25369395381 is a `hidden beast` number, since 253 + 6 + 9 + 3 + 9 + 5 + 381 = 666.

It is not a de Polignac number, because 25369395381 - 2¹ = 25369395379 is a prime.

It is a super-2 number, since 2×25369395381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25369390381) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8737576 + ... + 8740478.

It is an arithmetic number, because the mean of its divisors is an integer number (853836984).

Almost surely, 2^25369395381 is an apocalyptic number.

It is an amenable number.

25369395381 is a deficient number, since it is larger than the sum of its proper divisors (15614779851).

25369395381 is a wasteful number, since it uses less digits than its factorization.

25369395381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5114 (or 5111 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 54.

The spelling of 25369395381 in words is "twenty-five billion, three hundred sixty-nine million, three hundred ninety-five thousand, three hundred eighty-one".