2945998831 has 2 divisors, whose sum is σ = 2945998832. Its totient is φ = 2945998830.

The previous prime is 2945998829. The next prime is 2945998883. The reversal of 2945998831 is 1388995492.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2945998831 - 2¹ = 2945998829 is a prime.

It is a super-2 number, since 2×2945998831² = 17357818224506733122, which contains 22 as substring.

Together with 2945998829, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2945998801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1472999415 + 1472999416.

It is an arithmetic number, because the mean of its divisors is an integer number (1472999416).

Almost surely, 2^2945998831 is an apocalyptic number.

2945998831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2945998831 is an equidigital number, since it uses as much as digits as its factorization.

2945998831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 58.

The square root of 2945998831 is about 54277.0562116259. The cubic root of 2945998831 is about 1433.5434367628.

The spelling of 2945998831 in words is "two billion, nine hundred forty-five million, nine hundred ninety-eight thousand, eight hundred thirty-one".