2872140787648 has 112 divisors (see below), whose sum is σ = 6396355869696. Its totient is φ = 1268448629760.

The previous prime is 2872140787643. The next prime is 2872140787651. The reversal of 2872140787648 is 8467870412782.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a self number, because there is not a number n which added to its sum of digits gives 2872140787648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2872140787643) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3469465 + ... + 4216807.

Almost surely, 2^{2872140787648} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2872140787648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3198177934848).

2872140787648 is an abundant number, since it is smaller than the sum of its proper divisors (3524215082048).

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

2872140787648 is a wasteful number, since it uses less digits than its factorization.

2872140787648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747522 (or 747512 counting only the distinct ones).

The product of its (nonzero) digits is 67436544, while the sum is 64.

The spelling of 2872140787648 in words is "two trillion, eight hundred seventy-two billion, one hundred forty million, seven hundred eighty-seven thousand, six hundred forty-eight".