10091835881 has 2 divisors, whose sum is σ = 10091835882. Its totient is φ = 10091835880.

The previous prime is 10091835839. The next prime is 10091835907. The reversal of 10091835881 is 18853819001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9988203481 + 103632400 = 99941^2 + 10180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10091835881 is a prime.

It is a super-2 number, since 2×10091835881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10091835811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5045917940 + 5045917941.

It is an arithmetic number, because the mean of its divisors is an integer number (5045917941).

Almost surely, 2^10091835881 is an apocalyptic number.

It is an amenable number.

10091835881 is a deficient number, since it is larger than the sum of its proper divisors (1).

10091835881 is an equidigital number, since it uses as much as digits as its factorization.

10091835881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 44.

The spelling of 10091835881 in words is "ten billion, ninety-one million, eight hundred thirty-five thousand, eight hundred eighty-one".