25154336782872 has 48 divisors (see below), whose sum is σ = 74319631406280. Its totient is φ = 7622526297600.

The previous prime is 25154336782837. The next prime is 25154336782873. The reversal of 25154336782872 is 27828763345152.

25154336782872 is a `hidden beast` number, since 2 + 5 + 1 + 543 + 3 + 6 + 7 + 8 + 2 + 87 + 2 = 666.

It is a super-2 number, since 2×25154336782872² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25154336782873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15880262329 + ... + 15880263912.

Almost surely, 2^{25154336782872} is an apocalyptic number.

25154336782872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25154336782872 is an abundant number, since it is smaller than the sum of its proper divisors (49165294623408).

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

25154336782872 is a wasteful number, since it uses less digits than its factorization.

25154336782872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31760526264 (or 31760526257 counting only the distinct ones).

The product of its digits is 135475200, while the sum is 63.

The spelling of 25154336782872 in words is "twenty-five trillion, one hundred fifty-four billion, three hundred thirty-six million, seven hundred eighty-two thousand, eight hundred seventy-two".