27850153881 has 24 divisors (see below), whose sum is σ = 40899593952. Its totient is φ = 16844396800.

The previous prime is 27850153873. The next prime is 27850153889. The reversal of 27850153881 is 18835105872.

It is an interprime number because it is at equal distance from previous prime (27850153873) and next prime (27850153889).

It is not a de Polignac number, because 27850153881 - 2³ = 27850153873 is a prime.

It is a super-2 number, since 2×27850153881² (a number of 22 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 27850153881.

It is not an unprimeable number, because it can be changed into a prime (27850153889) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100105 + ... + 256361.

It is an arithmetic number, because the mean of its divisors is an integer number (1704149748).

Almost surely, 2^27850153881 is an apocalyptic number.

It is an amenable number.

27850153881 is a deficient number, since it is larger than the sum of its proper divisors (13049440071).

27850153881 is a wasteful number, since it uses less digits than its factorization.

27850153881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156773 (or 156762 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 48.

The spelling of 27850153881 in words is "twenty-seven billion, eight hundred fifty million, one hundred fifty-three thousand, eight hundred eighty-one".