2981615963 has 2 divisors, whose sum is σ = 2981615964. Its totient is φ = 2981615962.

The previous prime is 2981615933. The next prime is 2981616019. The reversal of 2981615963 is 3695161892.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2981615963 - 2¹⁸ = 2981353819 is a prime.

It is not a weakly prime, because it can be changed into another prime (2981615933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1490807981 + 1490807982.

It is an arithmetic number, because the mean of its divisors is an integer number (1490807982).

Almost surely, 2^2981615963 is an apocalyptic number.

2981615963 is a deficient number, since it is larger than the sum of its proper divisors (1).

2981615963 is an equidigital number, since it uses as much as digits as its factorization.

2981615963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 50.

The square root of 2981615963 is about 54604.1753257020. The cubic root of 2981615963 is about 1439.2974908926.

The spelling of 2981615963 in words is "two billion, nine hundred eighty-one million, six hundred fifteen thousand, nine hundred sixty-three".