27098987860 has 48 divisors (see below), whose sum is σ = 66550087296. Its totient is φ = 9075007872.

The previous prime is 27098987857. The next prime is 27098987891. The reversal of 27098987860 is 6878989072.

It is a junction number, because it is equal to n+sod(n) for n = 27098987792 and 27098987801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2244727 + ... + 2256766.

It is an arithmetic number, because the mean of its divisors is an integer number (1386460152).

Almost surely, 2^27098987860 is an apocalyptic number.

27098987860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27098987860 is an abundant number, since it is smaller than the sum of its proper divisors (39451099436).

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

27098987860 is a wasteful number, since it uses less digits than its factorization.

27098987860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501552 (or 4501550 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 64.

The spelling of 27098987860 in words is "twenty-seven billion, ninety-eight million, nine hundred eighty-seven thousand, eight hundred sixty".