249974002687 has 2 divisors, whose sum is σ = 249974002688. Its totient is φ = 249974002686.

The previous prime is 249974002667. The next prime is 249974002693. The reversal of 249974002687 is 786200479942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 249974002687 - 2²⁷ = 249839784959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249974002637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124987001343 + 124987001344.

It is an arithmetic number, because the mean of its divisors is an integer number (124987001344).

Almost surely, 2^249974002687 is an apocalyptic number.

249974002687 is a deficient number, since it is larger than the sum of its proper divisors (1).

249974002687 is an equidigital number, since it uses as much as digits as its factorization.

249974002687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 249974002687 in words is "two hundred forty-nine billion, nine hundred seventy-four million, two thousand, six hundred eighty-seven".