2945431919 has 2 divisors, whose sum is σ = 2945431920. Its totient is φ = 2945431918.

The previous prime is 2945431871. The next prime is 2945431963. The reversal of 2945431919 is 9191345492.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2945431919 - 2²⁸ = 2676996463 is a prime.

It is a super-2 number, since 2×2945431919² = 17351138378928045122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2945431969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1472715959 + 1472715960.

It is an arithmetic number, because the mean of its divisors is an integer number (1472715960).

Almost surely, 2^2945431919 is an apocalyptic number.

2945431919 is a deficient number, since it is larger than the sum of its proper divisors (1).

2945431919 is an equidigital number, since it uses as much as digits as its factorization.

2945431919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 47.

The square root of 2945431919 is about 54271.8335695414. The cubic root of 2945431919 is about 1433.4514764284.

The spelling of 2945431919 in words is "two billion, nine hundred forty-five million, four hundred thirty-one thousand, nine hundred nineteen".