27890014917798 has 64 divisors (see below), whose sum is σ = 67629424227840. Its totient is φ = 8449361316000.

The previous prime is 27890014917731. The next prime is 27890014917841. The reversal of 27890014917798 is 89771941009872.

27890014917798 is a `hidden beast` number, since 278 + 90 + 0 + 14 + 9 + 177 + 98 = 666.

It is a super-2 number, since 2×27890014917798² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3666778 + ... + 8320173.

It is an arithmetic number, because the mean of its divisors is an integer number (1056709753560).

Almost surely, 2^{27890014917798} is an apocalyptic number.

27890014917798 is an abundant number, since it is smaller than the sum of its proper divisors (39739409310042).

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

27890014917798 is a wasteful number, since it uses less digits than its factorization.

27890014917798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11990890 (or 11990884 counting only the distinct ones).

The product of its (nonzero) digits is 128024064, while the sum is 72.

The spelling of 27890014917798 in words is "twenty-seven trillion, eight hundred ninety billion, fourteen million, nine hundred seventeen thousand, seven hundred ninety-eight".