10081999631 has 12 divisors (see below), whose sum is σ = 11101625976. Its totient is φ = 9149112720.

The previous prime is 10081999597. The next prime is 10081999633. The reversal of 10081999631 is 13699918001.

It is not a de Polignac number, because 10081999631 - 2¹⁰ = 10081998607 is a prime.

It is a super-2 number, since 2×10081999631² (a number of 21 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 (10081999633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5876 + ... + 142121.

It is an arithmetic number, because the mean of its divisors is an integer number (925135498).

Almost surely, 2^10081999631 is an apocalyptic number.

10081999631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10081999631 is a deficient number, since it is larger than the sum of its proper divisors (1019626345).

10081999631 is a wasteful number, since it uses less digits than its factorization.

10081999631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148582 (or 148571 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 47.

The spelling of 10081999631 in words is "ten billion, eighty-one million, nine hundred ninety-nine thousand, six hundred thirty-one".