2721910887 has 24 divisors (see below), whose sum is σ = 4062389760. Its totient is φ = 1754378640.

The previous prime is 2721910871. The next prime is 2721910907. The reversal of 2721910887 is 7880191272.

It is not a de Polignac number, because 2721910887 - 2⁴ = 2721910871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721910847) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 327064 + ... + 335282.

It is an arithmetic number, because the mean of its divisors is an integer number (169266240).

Almost surely, 2^2721910887 is an apocalyptic number.

2721910887 is a deficient number, since it is larger than the sum of its proper divisors (1340478873).

2721910887 is a wasteful number, since it uses less digits than its factorization.

2721910887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9443 (or 9440 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The square root of 2721910887 is about 52171.9358180239. The cubic root of 2721910887 is about 1396.2332224952.

The spelling of 2721910887 in words is "two billion, seven hundred twenty-one million, nine hundred ten thousand, eight hundred eighty-seven".