19742046087 has 8 divisors (see below), whose sum is σ = 26336227840. Its totient is φ = 13154614200.

The previous prime is 19742046031. The next prime is 19742046133. The reversal of 19742046087 is 78064024791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19742046087 - 2⁸ = 19742045831 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 (19742046187) 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, 1680637 + ... + 1692342.

It is an arithmetic number, because the mean of its divisors is an integer number (3292028480).

Almost surely, 2^19742046087 is an apocalyptic number.

19742046087 is a deficient number, since it is larger than the sum of its proper divisors (6594181753).

19742046087 is a wasteful number, since it uses less digits than its factorization.

19742046087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374933.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 19742046087 in words is "nineteen billion, seven hundred forty-two million, forty-six thousand, eighty-seven".