2387217263887 has 2 divisors, whose sum is σ = 2387217263888. Its totient is φ = 2387217263886.

The previous prime is 2387217263881. The next prime is 2387217263941. The reversal of 2387217263887 is 7883627127832.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2387217263887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2387217263881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1193608631943 + 1193608631944.

It is an arithmetic number, because the mean of its divisors is an integer number (1193608631944).

Almost surely, 2^{2387217263887} is an apocalyptic number.

2387217263887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2387217263887 is an equidigital number, since it uses as much as digits as its factorization.

2387217263887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75866112, while the sum is 64.

The spelling of 2387217263887 in words is "two trillion, three hundred eighty-seven billion, two hundred seventeen million, two hundred sixty-three thousand, eight hundred eighty-seven".