2721135894 has 16 divisors (see below), whose sum is σ = 5443027968. Its totient is φ = 906919272.

The previous prime is 2721135883. The next prime is 2721135913. The reversal of 2721135894 is 4985311272.

It is a Curzon number.

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, 22359 + ... + 77085.

It is an arithmetic number, because the mean of its divisors is an integer number (340189248).

Almost surely, 2^2721135894 is an apocalyptic number.

2721135894 is an abundant number, since it is smaller than the sum of its proper divisors (2721892074).

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

2721135894 is a wasteful number, since it uses less digits than its factorization.

2721135894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63019.

The product of its digits is 120960, while the sum is 42.

The square root of 2721135894 is about 52164.5079915454. The cubic root of 2721135894 is about 1396.1006962747.

The spelling of 2721135894 in words is "two billion, seven hundred twenty-one million, one hundred thirty-five thousand, eight hundred ninety-four".