42196869438523 has 4 divisors (see below), whose sum is σ = 42196900368168. Its totient is φ = 42196838508880.

The previous prime is 42196869438499. The next prime is 42196869438593. The reversal of 42196869438523 is 32583496869124.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42196869438523 is a prime.

It is a super-2 number, since 2×42196869438523² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42196869438593) 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, 13319161 + ... + 16180042.

It is an arithmetic number, because the mean of its divisors is an integer number (10549225092042).

Almost surely, 2^{42196869438523} is an apocalyptic number.

42196869438523 is a deficient number, since it is larger than the sum of its proper divisors (30929645).

42196869438523 is a wasteful number, since it uses less digits than its factorization.

42196869438523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30929644.

The product of its digits is 537477120, while the sum is 70.

The spelling of 42196869438523 in words is "forty-two trillion, one hundred ninety-six billion, eight hundred sixty-nine million, four hundred thirty-eight thousand, five hundred twenty-three".