1000007999987 has 2 divisors, whose sum is σ = 1000007999988. Its totient is φ = 1000007999986.

The previous prime is 1000007999933. The next prime is 1000008000001. The reversal of 1000007999987 is 7899997000001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000007999987 - 2⁶ = 1000007999923 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000007999587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500003999993 + 500003999994.

It is an arithmetic number, because the mean of its divisors is an integer number (500003999994).

Almost surely, 2^{1000007999987} is an apocalyptic number.

1000007999987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000007999987 is an equidigital number, since it uses as much as digits as its factorization.

1000007999987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2571912, while the sum is 59.

The spelling of 1000007999987 in words is "one trillion, seven million, nine hundred ninety-nine thousand, nine hundred eighty-seven".