26251651021772 has 24 divisors (see below), whose sum is σ = 50125949217792. Its totient is φ = 11930387478800.

The previous prime is 26251651021741. The next prime is 26251651021793. The reversal of 26251651021772 is 27712015615262.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 54285728 + ... + 54767175.

It is an arithmetic number, because the mean of its divisors is an integer number (2088581217408).

Almost surely, 2^{26251651021772} is an apocalyptic number.

26251651021772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

26251651021772 is a deficient number, since it is larger than the sum of its proper divisors (23874298196020).

26251651021772 is a wasteful number, since it uses less digits than its factorization.

26251651021772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109058389 (or 109058387 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 26251651021772 in words is "twenty-six trillion, two hundred fifty-one billion, six hundred fifty-one million, twenty-one thousand, seven hundred seventy-two".