2681988968 has 32 divisors (see below), whose sum is σ = 5254320960. Its totient is φ = 1280991360.

The previous prime is 2681988949. The next prime is 2681988979. The reversal of 2681988968 is 8698891862.

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, 135548 + ... + 154068.

It is an arithmetic number, because the mean of its divisors is an integer number (164197530).

Almost surely, 2^2681988968 is an apocalyptic number.

It is an amenable number.

2681988968 is a deficient number, since it is larger than the sum of its proper divisors (2572331992).

2681988968 is a wasteful number, since it uses less digits than its factorization.

2681988968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19337 (or 19333 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 65.

The square root of 2681988968 is about 51787.9229936865. The cubic root of 2681988968 is about 1389.3734505207.

The spelling of 2681988968 in words is "two billion, six hundred eighty-one million, nine hundred eighty-eight thousand, nine hundred sixty-eight".