42069891019 has 8 divisors (see below), whose sum is σ = 45355348640. Its totient is φ = 38791478016.

The previous prime is 42069890999. The next prime is 42069891047. The reversal of 42069891019 is 91019896024.

It is a happy number.

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 42069891019 - 2¹⁵ = 42069858251 is a prime.

It is a super-2 number, since 2×42069891019² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42069891119) 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, 1748742 + ... + 1772635.

It is an arithmetic number, because the mean of its divisors is an integer number (5669418580).

Almost surely, 2^42069891019 is an apocalyptic number.

42069891019 is a deficient number, since it is larger than the sum of its proper divisors (3285457621).

42069891019 is a wasteful number, since it uses less digits than its factorization.

42069891019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522309.

The product of its (nonzero) digits is 279936, while the sum is 49.

The spelling of 42069891019 in words is "forty-two billion, sixty-nine million, eight hundred ninety-one thousand, nineteen".