2142591392987 has 2 divisors, whose sum is σ = 2142591392988. Its totient is φ = 2142591392986.

The previous prime is 2142591392947. The next prime is 2142591392993. The reversal of 2142591392987 is 7892931952412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2142591392987 - 2¹⁸ = 2142591130843 is a prime.

It is not a weakly prime, because it can be changed into another prime (2142591392947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071295696493 + 1071295696494.

It is an arithmetic number, because the mean of its divisors is an integer number (1071295696494).

Almost surely, 2^{2142591392987} is an apocalyptic number.

2142591392987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142591392987 is an equidigital number, since it uses as much as digits as its factorization.

2142591392987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19595520, while the sum is 62.

The spelling of 2142591392987 in words is "two trillion, one hundred forty-two billion, five hundred ninety-one million, three hundred ninety-two thousand, nine hundred eighty-seven".