10091444831 has 4 divisors (see below), whose sum is σ = 10867709832. Its totient is φ = 9315179832.

The previous prime is 10091444819. The next prime is 10091444837. The reversal of 10091444831 is 13844419001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13844419001 = 7 ⋅1977774143.

It is a cyclic number.

It is not a de Polignac number, because 10091444831 - 2⁶ = 10091444767 is a prime.

It is a super-2 number, since 2×10091444831² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10091444791 and 10091444800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10091444837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388132481 + ... + 388132506.

It is an arithmetic number, because the mean of its divisors is an integer number (2716927458).

Almost surely, 2^10091444831 is an apocalyptic number.

10091444831 is a deficient number, since it is larger than the sum of its proper divisors (776265001).

10091444831 is an equidigital number, since it uses as much as digits as its factorization.

10091444831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776265000.

The product of its (nonzero) digits is 13824, while the sum is 35.

The spelling of 10091444831 in words is "ten billion, ninety-one million, four hundred forty-four thousand, eight hundred thirty-one".