10187241905 has 8 divisors (see below), whose sum is σ = 12225441192. Its totient is φ = 8149292928.

The previous prime is 10187241901. The next prime is 10187241919. The reversal of 10187241905 is 50914278101.

It can be written as a sum of positive squares in 4 ways, for example, as 267878689 + 9919363216 = 16367^2 + 99596^2 .

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 10187241905 - 2² = 10187241901 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10187241901) 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, 43229 + ... + 149141.

It is an arithmetic number, because the mean of its divisors is an integer number (1528180149).

Almost surely, 2^10187241905 is an apocalyptic number.

It is an amenable number.

10187241905 is a deficient number, since it is larger than the sum of its proper divisors (2038199287).

10187241905 is a wasteful number, since it uses less digits than its factorization.

10187241905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125155.

The product of its (nonzero) digits is 20160, while the sum is 38.

The spelling of 10187241905 in words is "ten billion, one hundred eighty-seven million, two hundred forty-one thousand, nine hundred five".