27992643170 has 32 divisors (see below), whose sum is σ = 50629536000. Its totient is φ = 11143167616.

The previous prime is 27992643167. The next prime is 27992643179. The reversal of 27992643170 is 7134629972.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27992643179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5487281 + ... + 5492379.

It is an arithmetic number, because the mean of its divisors is an integer number (1582173000).

Almost surely, 2^27992643170 is an apocalyptic number.

27992643170 is a deficient number, since it is larger than the sum of its proper divisors (22636892830).

27992643170 is a wasteful number, since it uses less digits than its factorization.

27992643170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7642.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 27992643170 in words is "twenty-seven billion, nine hundred ninety-two million, six hundred forty-three thousand, one hundred seventy".