10281058991 has 4 divisors (see below), whose sum is σ = 11749781712. Its totient is φ = 8812336272.

The previous prime is 10281058979. The next prime is 10281059029. The reversal of 10281058991 is 19985018201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10281058991 - 2⁶ = 10281058927 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 (10281058901) 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, 734361350 + ... + 734361363.

It is an arithmetic number, because the mean of its divisors is an integer number (2937445428).

Almost surely, 2^10281058991 is an apocalyptic number.

10281058991 is a deficient number, since it is larger than the sum of its proper divisors (1468722721).

10281058991 is an equidigital number, since it uses as much as digits as its factorization.

10281058991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468722720.

The product of its (nonzero) digits is 51840, while the sum is 44.

The spelling of 10281058991 in words is "ten billion, two hundred eighty-one million, fifty-eight thousand, nine hundred ninety-one".