19195008087 has 16 divisors (see below), whose sum is σ = 26760983040. Its totient is φ = 12215139552.

The previous prime is 19195008071. The next prime is 19195008101. The reversal of 19195008087 is 78080059191.

It is not a de Polignac number, because 19195008087 - 2⁴ = 19195008071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19195008787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252012 + ... + 319217.

It is an arithmetic number, because the mean of its divisors is an integer number (1672561440).

Almost surely, 2^19195008087 is an apocalyptic number.

19195008087 is a deficient number, since it is larger than the sum of its proper divisors (7565974953).

19195008087 is a wasteful number, since it uses less digits than its factorization.

19195008087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571742.

The product of its (nonzero) digits is 181440, while the sum is 48.

The spelling of 19195008087 in words is "nineteen billion, one hundred ninety-five million, eight thousand, eighty-seven".