27528887877631 has 48 divisors (see below), whose sum is σ = 34631633483136. Its totient is φ = 21733733597184.

The previous prime is 27528887877629. The next prime is 27528887877679. The reversal of 27528887877631 is 13677878882572.

It is not a de Polignac number, because 27528887877631 - 2¹ = 27528887877629 is a prime.

It is a super-2 number, since 2×27528887877631² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27528887877691) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 576944431 + ... + 576992143.

It is an arithmetic number, because the mean of its divisors is an integer number (721492364232).

Almost surely, 2^{27528887877631} is an apocalyptic number.

27528887877631 is a deficient number, since it is larger than the sum of its proper divisors (7102745605505).

27528887877631 is a wasteful number, since it uses less digits than its factorization.

27528887877631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62528 (or 62521 counting only the distinct ones).

The product of its digits is 3540418560, while the sum is 79.

The spelling of 27528887877631 in words is "twenty-seven trillion, five hundred twenty-eight billion, eight hundred eighty-seven million, eight hundred seventy-seven thousand, six hundred thirty-one".