7899002345287 has 2 divisors, whose sum is σ = 7899002345288. Its totient is φ = 7899002345286.

The previous prime is 7899002345249. The next prime is 7899002345309. The reversal of 7899002345287 is 7825432009987.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7899002345287 - 2³¹ = 7896854861639 is a prime.

It is a super-2 number, since 2×7899002345287² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7899002345387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3949501172643 + 3949501172644.

It is an arithmetic number, because the mean of its divisors is an integer number (3949501172644).

Almost surely, 2^{7899002345287} is an apocalyptic number.

7899002345287 is a deficient number, since it is larger than the sum of its proper divisors (1).

7899002345287 is an equidigital number, since it uses as much as digits as its factorization.

7899002345287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60963840, while the sum is 64.

The spelling of 7899002345287 in words is "seven trillion, eight hundred ninety-nine billion, two million, three hundred forty-five thousand, two hundred eighty-seven".