25746694512 has 160 divisors (see below), whose sum is σ = 83103252480. Its totient is φ = 6673032960.

The previous prime is 25746694507. The next prime is 25746694559. The reversal of 25746694512 is 21549664752.

It is a happy number.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1763113 + ... + 1777655.

It is an arithmetic number, because the mean of its divisors is an integer number (519395328).

Almost surely, 2^25746694512 is an apocalyptic number.

25746694512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25746694512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41551626240).

25746694512 is an abundant number, since it is smaller than the sum of its proper divisors (57356557968).

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

25746694512 is a wasteful number, since it uses less digits than its factorization.

25746694512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15051 (or 15045 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 51.

The spelling of 25746694512 in words is "twenty-five billion, seven hundred forty-six million, six hundred ninety-four thousand, five hundred twelve".