19990141587 has 48 divisors (see below), whose sum is σ = 32197774336. Its totient is φ = 11868120000.

The previous prime is 19990141573. The next prime is 19990141597. The reversal of 19990141587 is 78514109991.

19990141587 is a `hidden beast` number, since 19 + 9 + 9 + 0 + 1 + 41 + 587 = 666.

It is not a de Polignac number, because 19990141587 - 2¹⁵ = 19990108819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19990141537) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1192212 + ... + 1208862.

Almost surely, 2^19990141587 is an apocalyptic number.

19990141587 is a deficient number, since it is larger than the sum of its proper divisors (12207632749).

19990141587 is a wasteful number, since it uses less digits than its factorization.

19990141587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17032 (or 17029 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 54.

The spelling of 19990141587 in words is "nineteen billion, nine hundred ninety million, one hundred forty-one thousand, five hundred eighty-seven".