26250252637640 has 32 divisors (see below), whose sum is σ = 59064757994880. Its totient is φ = 10499800688832.

The previous prime is 26250252637627. The next prime is 26250252637669. The reversal of 26250252637640 is 4673625205262.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7968014 + ... + 10769853.

It is an arithmetic number, because the mean of its divisors is an integer number (1845773687340).

Almost surely, 2^{26250252637640} is an apocalyptic number.

26250252637640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26250252637640 is an abundant number, since it is smaller than the sum of its proper divisors (32814505357240).

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

26250252637640 is a wasteful number, since it uses less digits than its factorization.

26250252637640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18772901 (or 18772897 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 50.

The spelling of 26250252637640 in words is "twenty-six trillion, two hundred fifty billion, two hundred fifty-two million, six hundred thirty-seven thousand, six hundred forty".