19131900487 has 8 divisors (see below), whose sum is σ = 23151207456. Its totient is φ = 15434138112.

The previous prime is 19131900443. The next prime is 19131900509. The reversal of 19131900487 is 78400913191.

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 19131900487 - 2¹⁵ = 19131867719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19131900407) 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, 80386018 + ... + 80386255.

It is an arithmetic number, because the mean of its divisors is an integer number (2893900932).

Almost surely, 2^19131900487 is an apocalyptic number.

19131900487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

19131900487 is a deficient number, since it is larger than the sum of its proper divisors (4019306969).

19131900487 is a wasteful number, since it uses less digits than its factorization.

19131900487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160772297.

The product of its (nonzero) digits is 54432, while the sum is 43.

The spelling of 19131900487 in words is "nineteen billion, one hundred thirty-one million, nine hundred thousand, four hundred eighty-seven".