42719786923 has 4 divisors (see below), whose sum is σ = 46603403928. Its totient is φ = 38836169920.

The previous prime is 42719786917. The next prime is 42719786947. The reversal of 42719786923 is 32968791724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42719786923 - 2¹⁷ = 42719655851 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42719786423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1941808486 + ... + 1941808507.

It is an arithmetic number, because the mean of its divisors is an integer number (11650850982).

Almost surely, 2^42719786923 is an apocalyptic number.

42719786923 is a deficient number, since it is larger than the sum of its proper divisors (3883617005).

42719786923 is a wasteful number, since it uses less digits than its factorization.

42719786923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3883617004.

The product of its digits is 9144576, while the sum is 58.

The spelling of 42719786923 in words is "forty-two billion, seven hundred nineteen million, seven hundred eighty-six thousand, nine hundred twenty-three".