1002086901921 has 16 divisors (see below), whose sum is σ = 1528488115200. Its totient is φ = 572059130448.

The previous prime is 1002086901889. The next prime is 1002086901941. The reversal of 1002086901921 is 1291096802001.

It is not a de Polignac number, because 1002086901921 - 2⁵ = 1002086901889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002086901921.

It is not an unprimeable number, because it can be changed into a prime (1002086901941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23392941 + ... + 23435738.

It is an arithmetic number, because the mean of its divisors is an integer number (95530507200).

Almost surely, 2^{1002086901921} is an apocalyptic number.

It is an amenable number.

1002086901921 is a deficient number, since it is larger than the sum of its proper divisors (526401213279).

1002086901921 is a wasteful number, since it uses less digits than its factorization.

1002086901921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46829708.

The product of its (nonzero) digits is 15552, while the sum is 39.

The spelling of 1002086901921 in words is "one trillion, two billion, eighty-six million, nine hundred one thousand, nine hundred twenty-one".