27986022154858 has 8 divisors (see below), whose sum is σ = 42026574608928. Its totient is φ = 13977163951884.

The previous prime is 27986022154823. The next prime is 27986022154859. The reversal of 27986022154858 is 85845122068972.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 27986022154793 and 27986022154802.

It is not an unprimeable number, because it can be changed into a prime (27986022154859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7923560566 + ... + 7923564097.

It is an arithmetic number, because the mean of its divisors is an integer number (5253321826116).

Almost surely, 2^{27986022154858} is an apocalyptic number.

27986022154858 is a deficient number, since it is larger than the sum of its proper divisors (14040552454070).

27986022154858 is a wasteful number, since it uses less digits than its factorization.

27986022154858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15847125548.

The product of its (nonzero) digits is 154828800, while the sum is 67.

The spelling of 27986022154858 in words is "twenty-seven trillion, nine hundred eighty-six billion, twenty-two million, one hundred fifty-four thousand, eight hundred fifty-eight".