27100942090 has 32 divisors (see below), whose sum is σ = 51863089536. Its totient is φ = 10173408960.

The previous prime is 27100942061. The next prime is 27100942097. The reversal of 27100942090 is 9024900172.

It is a happy number.

It is a super-2 number, since 2×27100942090² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27100942097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1099416 + ... + 1123795.

It is an arithmetic number, because the mean of its divisors is an integer number (1620721548).

Almost surely, 2^27100942090 is an apocalyptic number.

27100942090 is a deficient number, since it is larger than the sum of its proper divisors (24762147446).

27100942090 is a wasteful number, since it uses less digits than its factorization.

27100942090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223294.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 27100942090 in words is "twenty-seven billion, one hundred million, nine hundred forty-two thousand, ninety".