27986022154860 has 192 divisors, whose sum is σ = 97700204851200. Its totient is φ = 5815066279680.

The previous prime is 27986022154859. The next prime is 27986022154861. The reversal of 27986022154860 is 6845122068972.

It is an interprime number because it is at equal distance from previous prime (27986022154859) and next prime (27986022154861).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 27986022154794 and 27986022154803.

It is not an unprimeable number, because it can be changed into a prime (27986022154861) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 149127607 + ... + 149315153.

It is an arithmetic number, because the mean of its divisors is an integer number (508855233600).

Almost surely, 2^{27986022154860} is an apocalyptic number.

27986022154860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27986022154860 is an abundant number, since it is smaller than the sum of its proper divisors (69714182696340).

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

27986022154860 is a wasteful number, since it uses less digits than its factorization.

27986022154860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219876 (or 219874 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 60.

The spelling of 27986022154860 in words is "twenty-seven trillion, nine hundred eighty-six billion, twenty-two million, one hundred fifty-four thousand, eight hundred sixty".