27974698990 has 16 divisors (see below), whose sum is σ = 57547952352. Its totient is φ = 9591325344.

The previous prime is 27974698951. The next prime is 27974699069. The reversal of 27974698990 is 9989647972.

It is a super-2 number, since 2×27974698990² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (70), and also a Moran number because the ratio is a prime number: 399638557 = 27974698990 / (2 + 7 + 9 + 7 + 4 + 6 + 9 + 8 + 9 + 9 + 0).

It is a congruent number.

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, 199819209 + ... + 199819348.

It is an arithmetic number, because the mean of its divisors is an integer number (3596747022).

Almost surely, 2^27974698990 is an apocalyptic number.

27974698990 is an abundant number, since it is smaller than the sum of its proper divisors (29573253362).

27974698990 is a wasteful number, since it uses less digits than its factorization.

27974698990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399638571.

The product of its (nonzero) digits is 123451776, while the sum is 70.

The spelling of 27974698990 in words is "twenty-seven billion, nine hundred seventy-four million, six hundred ninety-eight thousand, nine hundred ninety".