10101009999949 has 4 divisors (see below), whose sum is σ = 11019283636320. Its totient is φ = 9182736363580.

The previous prime is 10101009999931. The next prime is 10101010000007. The reversal of 10101009999949 is 94999990010101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10101009999949 - 2²⁵ = 10100976445517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101009999149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459136818169 + ... + 459136818190.

It is an arithmetic number, because the mean of its divisors is an integer number (2754820909080).

Almost surely, 2^{10101009999949} is an apocalyptic number.

It is an amenable number.

10101009999949 is a deficient number, since it is larger than the sum of its proper divisors (918273636371).

10101009999949 is an equidigital number, since it uses as much as digits as its factorization.

10101009999949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918273636370.

The product of its (nonzero) digits is 2125764, while the sum is 61.

The spelling of 10101009999949 in words is "ten trillion, one hundred one billion, nine million, nine hundred ninety-nine thousand, nine hundred forty-nine".