2499763439 has 2 divisors, whose sum is σ = 2499763440. Its totient is φ = 2499763438.

The previous prime is 2499763423. The next prime is 2499763459. The reversal of 2499763439 is 9343679942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2499763439 - 2⁴ = 2499763423 is a prime.

It is a super-2 number, since 2×2499763439² = 12497634501922213442, which contains 22 as substring.

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 (2499763459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1249881719 + 1249881720.

It is an arithmetic number, because the mean of its divisors is an integer number (1249881720).

Almost surely, 2^2499763439 is an apocalyptic number.

2499763439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2499763439 is an equidigital number, since it uses as much as digits as its factorization.

2499763439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8817984, while the sum is 56.

The square root of 2499763439 is about 49997.6343340362. The cubic root of 2499763439 is about 1357.1659985908.

The spelling of 2499763439 in words is "two billion, four hundred ninety-nine million, seven hundred sixty-three thousand, four hundred thirty-nine".