27947130728840 has 128 divisors (see below), whose sum is σ = 63761553820800. Its totient is φ = 11023426252800.

The previous prime is 27947130728791. The next prime is 27947130728863. The reversal of 27947130728840 is 4882703174972.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 774505439 + ... + 774541521.

It is an arithmetic number, because the mean of its divisors is an integer number (498137139225).

Almost surely, 2^{27947130728840} is an apocalyptic number.

27947130728840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27947130728840 is an abundant number, since it is smaller than the sum of its proper divisors (35814423091960).

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

27947130728840 is a wasteful number, since it uses less digits than its factorization.

27947130728840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37047 (or 37043 counting only the distinct ones).

The product of its (nonzero) digits is 37933056, while the sum is 62.

The spelling of 27947130728840 in words is "twenty-seven trillion, nine hundred forty-seven billion, one hundred thirty million, seven hundred twenty-eight thousand, eight hundred forty".