27101621023 has 2 divisors, whose sum is σ = 27101621024. Its totient is φ = 27101621022.

The previous prime is 27101621011. The next prime is 27101621039. The reversal of 27101621023 is 32012610172.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27101621023 - 2²⁵ = 27068066591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27101621003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13550810511 + 13550810512.

It is an arithmetic number, because the mean of its divisors is an integer number (13550810512).

Almost surely, 2^27101621023 is an apocalyptic number.

27101621023 is a deficient number, since it is larger than the sum of its proper divisors (1).

27101621023 is an equidigital number, since it uses as much as digits as its factorization.

27101621023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The spelling of 27101621023 in words is "twenty-seven billion, one hundred one million, six hundred twenty-one thousand, twenty-three".