10010900991 has 32 divisors (see below), whose sum is σ = 16697486848. Its totient is φ = 5193901440.

The previous prime is 10010900989. The next prime is 10010901053. The reversal of 10010900991 is 19900901001.

It is not a de Polignac number, because 10010900991 - 2¹ = 10010900989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010900951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 283921 + ... + 317226.

It is an arithmetic number, because the mean of its divisors is an integer number (521796464).

Almost surely, 2^10010900991 is an apocalyptic number.

10010900991 is a deficient number, since it is larger than the sum of its proper divisors (6686585857).

10010900991 is a wasteful number, since it uses less digits than its factorization.

10010900991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601231.

The product of its (nonzero) digits is 729, while the sum is 30.

The spelling of 10010900991 in words is "ten billion, ten million, nine hundred thousand, nine hundred ninety-one".