2729140529640 has 64 divisors (see below), whose sum is σ = 9357053247360. Its totient is φ = 623803549440.

The previous prime is 2729140529627. The next prime is 2729140529657. The reversal of 2729140529640 is 469250419272.

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, 1624487571 + ... + 1624489250.

It is an arithmetic number, because the mean of its divisors is an integer number (146203956990).

Almost surely, 2^{2729140529640} is an apocalyptic number.

2729140529640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2729140529640 is an abundant number, since it is smaller than the sum of its proper divisors (6627912717720).

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

2729140529640 is a wasteful number, since it uses less digits than its factorization.

2729140529640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248976842 (or 3248976838 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 2729140529640 in words is "two trillion, seven hundred twenty-nine billion, one hundred forty million, five hundred twenty-nine thousand, six hundred forty".