42579835493 has 16 divisors (see below), whose sum is σ = 47769825600. Its totient is φ = 37695861120.

The previous prime is 42579835457. The next prime is 42579835517. The reversal of 42579835493 is 39453897524.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42579835493 - 2²² = 42575641189 is a prime.

It is a super-2 number, since 2×42579835493² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42579835453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645563 + ... + 708456.

It is an arithmetic number, because the mean of its divisors is an integer number (2985614100).

Almost surely, 2^42579835493 is an apocalyptic number.

It is an amenable number.

42579835493 is a deficient number, since it is larger than the sum of its proper divisors (5189990107).

42579835493 is a wasteful number, since it uses less digits than its factorization.

42579835493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354132.

The product of its digits is 32659200, while the sum is 59.

The spelling of 42579835493 in words is "forty-two billion, five hundred seventy-nine million, eight hundred thirty-five thousand, four hundred ninety-three".