10189534981 has 8 divisors (see below), whose sum is σ = 10386755064. Its totient is φ = 9992498880.

The previous prime is 10189534961. The next prime is 10189535039. The reversal of 10189534981 is 18943598101.

It can be written as a sum of positive squares in 4 ways, for example, as 3487493025 + 6702041956 = 59055^2 + 81866^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10189534981 - 2³¹ = 8042051333 is a prime.

It is a super-2 number, since 2×10189534981² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10189534921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68575 + ... + 158371.

It is an arithmetic number, because the mean of its divisors is an integer number (1298344383).

Almost surely, 2^10189534981 is an apocalyptic number.

It is an amenable number.

10189534981 is a deficient number, since it is larger than the sum of its proper divisors (197220083).

10189534981 is an equidigital number, since it uses as much as digits as its factorization.

10189534981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91991.

The product of its (nonzero) digits is 311040, while the sum is 49.

The spelling of 10189534981 in words is "ten billion, one hundred eighty-nine million, five hundred thirty-four thousand, nine hundred eighty-one".