83524042538 has 4 divisors (see below), whose sum is σ = 125286063810. Its totient is φ = 41762021268.

The previous prime is 83524042517. The next prime is 83524042633.

It is a happy number.

83524042538 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in only one way, i.e., 69660628489 + 13863414049 = 263933^2 + 117743^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20881010633 + ... + 20881010636.

Almost surely, 2^83524042538 is an apocalyptic number.

83524042538 is a deficient number, since it is larger than the sum of its proper divisors (41762021272).

83524042538 is a wasteful number, since it uses less digits than its factorization.

83524042538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41762021271.

The product of its (nonzero) digits is 921600, while the sum is 44.

It can be divided in two parts, 835240 and 42538, that added together give a palindrome (877778).

The spelling of 83524042538 in words is "eighty-three billion, five hundred twenty-four million, forty-two thousand, five hundred thirty-eight".