27901306512870 has 96 divisors (see below), whose sum is σ = 78219112932576. Its totient is φ = 6350978995200.

The previous prime is 27901306512853. The next prime is 27901306512917. The reversal of 27901306512870 is 7821560310972.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39024321 + ... + 39732860.

It is an arithmetic number, because the mean of its divisors is an integer number (814782426381).

Almost surely, 2^{27901306512870} is an apocalyptic number.

27901306512870 is an abundant number, since it is smaller than the sum of its proper divisors (50317806419706).

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

27901306512870 is a wasteful number, since it uses less digits than its factorization.

27901306512870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78757446 (or 78757439 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 27901306512870 in words is "twenty-seven trillion, nine hundred one billion, three hundred six million, five hundred twelve thousand, eight hundred seventy".