27898457802 has 16 divisors (see below), whose sum is σ = 56423848320. Its totient is φ = 9194997152.

The previous prime is 27898457771. The next prime is 27898457813. The reversal of 27898457802 is 20875489872.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26121618 + ... + 26122685.

It is an arithmetic number, because the mean of its divisors is an integer number (3526490520).

Almost surely, 2^27898457802 is an apocalyptic number.

27898457802 is an abundant number, since it is smaller than the sum of its proper divisors (28525390518).

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

27898457802 is a wasteful number, since it uses less digits than its factorization.

27898457802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52244397.

The product of its (nonzero) digits is 18063360, while the sum is 60.

The spelling of 27898457802 in words is "twenty-seven billion, eight hundred ninety-eight million, four hundred fifty-seven thousand, eight hundred two".