27051117266261 has 32 divisors (see below), whose sum is σ = 31321402444800. Its totient is φ = 23089658791680.

The previous prime is 27051117266249. The next prime is 27051117266267. The reversal of 27051117266261 is 16266271115072.

It is a de Polignac number, because none of the positive numbers 2^k-27051117266261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27051117266267) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 667595360 + ... + 667635878.

It is an arithmetic number, because the mean of its divisors is an integer number (978793826400).

Almost surely, 2^{27051117266261} is an apocalyptic number.

It is an amenable number.

27051117266261 is a deficient number, since it is larger than the sum of its proper divisors (4270285178539).

27051117266261 is a wasteful number, since it uses less digits than its factorization.

27051117266261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49049.

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 27051117266261 in words is "twenty-seven trillion, fifty-one billion, one hundred seventeen million, two hundred sixty-six thousand, two hundred sixty-one".