2881901520 has 60 divisors (see below), whose sum is σ = 9678388356. Its totient is φ = 768506880.

The previous prime is 2881901497. The next prime is 2881901537. The reversal of 2881901520 is 251091882.

2881901520 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1083463056 + 1798438464 = 32916^2 + 42408^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2000601 + ... + 2002040.

Almost surely, 2^2881901520 is an apocalyptic number.

2881901520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2881901520 is an abundant number, since it is smaller than the sum of its proper divisors (6796486836).

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

2881901520 is a wasteful number, since it uses less digits than its factorization.

2881901520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002660 (or 4002651 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 2881901520 is about 53683.3449032379. The cubic root of 2881901520 is about 1423.0703780816.

It can be divided in two parts, 2881 and 901520, that added together give a square (904401 = 951²).

The spelling of 2881901520 in words is "two billion, eight hundred eighty-one million, nine hundred one thousand, five hundred twenty".