27123401670 has 32 divisors (see below), whose sum is σ = 66855522528. Its totient is φ = 7037422848.

The previous prime is 27123401647. The next prime is 27123401681. The reversal of 27123401670 is 7610432172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12216639 + ... + 12218858.

It is an arithmetic number, because the mean of its divisors is an integer number (2089235079).

Almost surely, 2^27123401670 is an apocalyptic number.

27123401670 is an abundant number, since it is smaller than the sum of its proper divisors (39732120858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27123401670 is a wasteful number, since it uses less digits than its factorization.

27123401670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24435544.

The product of its (nonzero) digits is 14112, while the sum is 33.

The spelling of 27123401670 in words is "twenty-seven billion, one hundred twenty-three million, four hundred one thousand, six hundred seventy".