2712128681840 has 40 divisors (see below), whose sum is σ = 6424674651648. Its totient is φ = 1064382575360.

The previous prime is 2712128681839. The next prime is 2712128681851. The reversal of 2712128681840 is 481868212172.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319822256 + ... + 319830735.

Almost surely, 2^{2712128681840} is an apocalyptic number.

2712128681840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2712128681840 is an abundant number, since it is smaller than the sum of its proper divisors (3712545969808).

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

2712128681840 is a wasteful number, since it uses less digits than its factorization.

2712128681840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639653057 (or 639653051 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 50.

The spelling of 2712128681840 in words is "two trillion, seven hundred twelve billion, one hundred twenty-eight million, six hundred eighty-one thousand, eight hundred forty".