26121400218315 has 32 divisors (see below), whose sum is σ = 46526836631040. Its totient is φ = 13904775910368.

The previous prime is 26121400218307. The next prime is 26121400218341. The reversal of 26121400218315 is 51381200412162.

26121400218315 is a `hidden beast` number, since 2 + 6 + 1 + 2 + 1 + 400 + 218 + 31 + 5 = 666.

It is not a de Polignac number, because 26121400218315 - 2³ = 26121400218307 is a prime.

It is a super-2 number, since 2×26121400218315² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26121400218315.

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, 184912047 + ... + 185053256.

It is an arithmetic number, because the mean of its divisors is an integer number (1453963644720).

Almost surely, 2^{26121400218315} is an apocalyptic number.

26121400218315 is a deficient number, since it is larger than the sum of its proper divisors (20405436412725).

26121400218315 is a wasteful number, since it uses less digits than its factorization.

26121400218315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369965840 (or 369965834 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 26121400218315 in words is "twenty-six trillion, one hundred twenty-one billion, four hundred million, two hundred eighteen thousand, three hundred fifteen".