27663602080881 has 32 divisors (see below), whose sum is σ = 40226581265920. Its totient is φ = 16807564800000.

The previous prime is 27663602080871. The next prime is 27663602080883. The reversal of 27663602080881 is 18808020636672.

It is a happy number.

It is not a de Polignac number, because 27663602080881 - 2²¹ = 27663599983729 is a prime.

It is a super-2 number, since 2×27663602080881² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27663602080883) 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, 79318881 + ... + 79666881.

It is an arithmetic number, because the mean of its divisors is an integer number (1257080664560).

Almost surely, 2^{27663602080881} is an apocalyptic number.

It is an amenable number.

27663602080881 is a deficient number, since it is larger than the sum of its proper divisors (12562979185039).

27663602080881 is a wasteful number, since it uses less digits than its factorization.

27663602080881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373897.

The product of its (nonzero) digits is 9289728, while the sum is 57.

The spelling of 27663602080881 in words is "twenty-seven trillion, six hundred sixty-three billion, six hundred two million, eighty thousand, eight hundred eighty-one".