2981615972 has 24 divisors (see below), whose sum is σ = 5292000000. Its totient is φ = 1469693216.

The previous prime is 2981615963. The next prime is 2981616019. The reversal of 2981615972 is 2795161892.

It is a self number, because there is not a number n which added to its sum of digits gives 2981615972.

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, 149654 + ... + 168402.

It is an arithmetic number, because the mean of its divisors is an integer number (220500000).

Almost surely, 2^2981615972 is an apocalyptic number.

It is an amenable number.

2981615972 is a deficient number, since it is larger than the sum of its proper divisors (2310384028).

2981615972 is a wasteful number, since it uses less digits than its factorization.

2981615972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19315 (or 19313 counting only the distinct ones).

The product of its digits is 544320, while the sum is 50.

The square root of 2981615972 is about 54604.1754081133. The cubic root of 2981615972 is about 1439.2974923407.

The spelling of 2981615972 in words is "two billion, nine hundred eighty-one million, six hundred fifteen thousand, nine hundred seventy-two".