25622984196 has 72 divisors (see below), whose sum is σ = 66230872344. Its totient is φ = 8349419520.

The previous prime is 25622984183. The next prime is 25622984201. The reversal of 25622984196 is 69148922652.

25622984196 is a `hidden beast` number, since 2 + 5 + 622 + 9 + 8 + 4 + 1 + 9 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10137670596 + 15485313600 = 100686^2 + 124440^2 .

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 504276 + ... + 552756.

It is an arithmetic number, because the mean of its divisors is an integer number (919873227).

Almost surely, 2^25622984196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25622984196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33115436172).

25622984196 is an abundant number, since it is smaller than the sum of its proper divisors (40607888148).

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

25622984196 is a wasteful number, since it uses less digits than its factorization.

25622984196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48821 (or 48816 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 25622984196 in words is "twenty-five billion, six hundred twenty-two million, nine hundred eighty-four thousand, one hundred ninety-six".