1002835051981 has 12 divisors (see below), whose sum is σ = 1183974619008. Its totient is φ = 846743452632.

The previous prime is 1002835051949. The next prime is 1002835052039. The reversal of 1002835051981 is 1891505382001.

It is not a de Polignac number, because 1002835051981 - 2⁵ = 1002835051949 is a prime.

It is a super-2 number, since 2×1002835051981² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002835051081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152728221 + ... + 152734786.

It is an arithmetic number, because the mean of its divisors is an integer number (98664551584).

Almost surely, 2^{1002835051981} is an apocalyptic number.

It is an amenable number.

1002835051981 is a deficient number, since it is larger than the sum of its proper divisors (181139567027).

1002835051981 is an equidigital number, since it uses as much as digits as its factorization.

1002835051981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305463088 (or 305463081 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 43.

The spelling of 1002835051981 in words is "one trillion, two billion, eight hundred thirty-five million, fifty-one thousand, nine hundred eighty-one".