2518931423 has 2 divisors, whose sum is σ = 2518931424. Its totient is φ = 2518931422.

The previous prime is 2518931419. The next prime is 2518931431. The reversal of 2518931423 is 3241398152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2518931423 - 2² = 2518931419 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2518931483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1259465711 + 1259465712.

It is an arithmetic number, because the mean of its divisors is an integer number (1259465712).

Almost surely, 2^2518931423 is an apocalyptic number.

2518931423 is a deficient number, since it is larger than the sum of its proper divisors (1).

2518931423 is an equidigital number, since it uses as much as digits as its factorization.

2518931423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 2518931423 is about 50188.9571818343. The cubic root of 2518931423 is about 1360.6260495328.

The spelling of 2518931423 in words is "two billion, five hundred eighteen million, nine hundred thirty-one thousand, four hundred twenty-three".