27219993620985 has 96 divisors (see below), whose sum is σ = 52403466211200. Its totient is φ = 12959938206720.

The previous prime is 27219993620921. The next prime is 27219993621011. The reversal of 27219993620985 is 58902639991272.

27219993620985 is a `hidden beast` number, since 2 + 72 + 199 + 9 + 362 + 0 + 9 + 8 + 5 = 666.

It is not a de Polignac number, because 27219993620985 - 2⁶ = 27219993620921 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6630186 + ... + 9919644.

It is an arithmetic number, because the mean of its divisors is an integer number (545869439700).

Almost surely, 2^{27219993620985} is an apocalyptic number.

It is an amenable number.

27219993620985 is a deficient number, since it is larger than the sum of its proper divisors (25183472590215).

27219993620985 is a wasteful number, since it uses less digits than its factorization.

27219993620985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3289783 (or 3289780 counting only the distinct ones).

The product of its (nonzero) digits is 264539520, while the sum is 72.

The spelling of 27219993620985 in words is "twenty-seven trillion, two hundred nineteen billion, nine hundred ninety-three million, six hundred twenty thousand, nine hundred eighty-five".