26101758874640 has 40 divisors (see below), whose sum is σ = 60810187416768. Its totient is φ = 10419439372160.

The previous prime is 26101758874601. The next prime is 26101758874657. The reversal of 26101758874640 is 4647885710162.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 26101758874640.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332213252 + ... + 332291811.

Almost surely, 2^{26101758874640} is an apocalyptic number.

26101758874640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26101758874640 is an abundant number, since it is smaller than the sum of its proper divisors (34708428542128).

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

26101758874640 is a wasteful number, since it uses less digits than its factorization.

26101758874640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664505567 (or 664505561 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 59.

The spelling of 26101758874640 in words is "twenty-six trillion, one hundred one billion, seven hundred fifty-eight million, eight hundred seventy-four thousand, six hundred forty".