1027641962987 has 4 divisors (see below), whose sum is σ = 1033382979720. Its totient is φ = 1021900946256.

The previous prime is 1027641962917. The next prime is 1027641962989. The reversal of 1027641962987 is 7892691467201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1027641962987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1027641962989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2870508098 + ... + 2870508455.

It is an arithmetic number, because the mean of its divisors is an integer number (258345744930).

Almost surely, 2^{1027641962987} is an apocalyptic number.

1027641962987 is a deficient number, since it is larger than the sum of its proper divisors (5741016733).

1027641962987 is an equidigital number, since it uses as much as digits as its factorization.

1027641962987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5741016732.

The product of its (nonzero) digits is 18289152, while the sum is 62.

The spelling of 1027641962987 in words is "one trillion, twenty-seven billion, six hundred forty-one million, nine hundred sixty-two thousand, nine hundred eighty-seven".