27813910842 has 64 divisors (see below), whose sum is σ = 62358912000. Its totient is φ = 9189001584.

The previous prime is 27813910801. The next prime is 27813910849. The reversal of 27813910842 is 24801931872.

It is a happy number.

It is a super-2 number, since 2×27813910842² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27813910849) 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, 4943643 + ... + 4949265.

It is an arithmetic number, because the mean of its divisors is an integer number (974358000).

Almost surely, 2^27813910842 is an apocalyptic number.

27813910842 is an abundant number, since it is smaller than the sum of its proper divisors (34545001158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27813910842 is a wasteful number, since it uses less digits than its factorization.

27813910842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6432 (or 6426 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 27813910842 in words is "twenty-seven billion, eight hundred thirteen million, nine hundred ten thousand, eight hundred forty-two".