27800715822 has 48 divisors (see below), whose sum is σ = 61139791440. Its totient is φ = 8421128320.

The previous prime is 27800715797. The next prime is 27800715829. The reversal of 27800715822 is 22851700872.

It is a super-2 number, since 2×27800715822² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27800715829) 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, 2323768 + ... + 2335700.

It is an arithmetic number, because the mean of its divisors is an integer number (1273745655).

Almost surely, 2^27800715822 is an apocalyptic number.

27800715822 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

27800715822 is an abundant number, since it is smaller than the sum of its proper divisors (33339075618).

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

27800715822 is a wasteful number, since it uses less digits than its factorization.

27800715822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15169 (or 15158 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 42.

The spelling of 27800715822 in words is "twenty-seven billion, eight hundred million, seven hundred fifteen thousand, eight hundred twenty-two".