10101990992 has 10 divisors (see below), whose sum is σ = 19572607578. Its totient is φ = 5050995488.

The previous prime is 10101990979. The next prime is 10101991019. The reversal of 10101990992 is 29909910101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10007201296 + 94789696 = 100036^2 + 9736^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315687203 + ... + 315687234.

Almost surely, 2^10101990992 is an apocalyptic number.

It is an amenable number.

10101990992 is a deficient number, since it is larger than the sum of its proper divisors (9470616586).

10101990992 is an equidigital number, since it uses as much as digits as its factorization.

10101990992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631374445 (or 631374439 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 41.

The spelling of 10101990992 in words is "ten billion, one hundred one million, nine hundred ninety thousand, nine hundred ninety-two".