25478924682 has 32 divisors (see below), whose sum is σ = 54610538112. Its totient is φ = 7904153664.

The previous prime is 25478924663. The next prime is 25478924683. The reversal of 25478924682 is 28642987452.

It is a super-2 number, since 2×25478924682² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25478924683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2489893 + ... + 2500104.

It is an arithmetic number, because the mean of its divisors is an integer number (1706579316).

Almost surely, 2^25478924682 is an apocalyptic number.

25478924682 is an abundant number, since it is smaller than the sum of its proper divisors (29131613430).

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

25478924682 is a wasteful number, since it uses less digits than its factorization.

25478924682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4990062.

The product of its digits is 15482880, while the sum is 57.

The spelling of 25478924682 in words is "twenty-five billion, four hundred seventy-eight million, nine hundred twenty-four thousand, six hundred eighty-two".