19905441412232 has 32 divisors (see below), whose sum is σ = 37658372753880. Its totient is φ = 9863576286720.

The previous prime is 19905441412231. The next prime is 19905441412237. The reversal of 19905441412232 is 23221414450991.

It can be written as a sum of positive squares in 4 ways, for example, as 18847806056836 + 1057635355396 = 4341406^2 + 1028414^2 .

It is not an unprimeable number, because it can be changed into a prime (19905441412231) 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, 22542119 + ... + 23408502.

Almost surely, 2^{19905441412232} is an apocalyptic number.

It is an amenable number.

19905441412232 is a deficient number, since it is larger than the sum of its proper divisors (17752931341648).

19905441412232 is a wasteful number, since it uses less digits than its factorization.

19905441412232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45951113 (or 45951109 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 19905441412232 in words is "nineteen trillion, nine hundred five billion, four hundred forty-one million, four hundred twelve thousand, two hundred thirty-two".