2142517970387 has 2 divisors, whose sum is σ = 2142517970388. Its totient is φ = 2142517970386.

The previous prime is 2142517970363. The next prime is 2142517970393. The reversal of 2142517970387 is 7830797152412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2142517970387 - 2¹⁰ = 2142517969363 is a prime.

It is not a weakly prime, because it can be changed into another prime (2142517970317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071258985193 + 1071258985194.

It is an arithmetic number, because the mean of its divisors is an integer number (1071258985194).

Almost surely, 2^{2142517970387} is an apocalyptic number.

2142517970387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142517970387 is an equidigital number, since it uses as much as digits as its factorization.

2142517970387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5927040, while the sum is 56.

The spelling of 2142517970387 in words is "two trillion, one hundred forty-two billion, five hundred seventeen million, nine hundred seventy thousand, three hundred eighty-seven".