19870104495 has 16 divisors (see below), whose sum is σ = 32567586912. Its totient is φ = 10338915840.

The previous prime is 19870104481. The next prime is 19870104619. The reversal of 19870104495 is 59440107891.

It is not a de Polignac number, because 19870104495 - 2⁶ = 19870104431 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16153942 + ... + 16155171.

It is an arithmetic number, because the mean of its divisors is an integer number (2035474182).

Almost surely, 2^19870104495 is an apocalyptic number.

19870104495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19870104495 is a deficient number, since it is larger than the sum of its proper divisors (12697482417).

19870104495 is a wasteful number, since it uses less digits than its factorization.

19870104495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32309162.

The product of its (nonzero) digits is 362880, while the sum is 48.

The spelling of 19870104495 in words is "nineteen billion, eight hundred seventy million, one hundred four thousand, four hundred ninety-five".