83724442738 has 4 divisors (see below), whose sum is σ = 125586664110. Its totient is φ = 41862221368.

The previous prime is 83724442729. The next prime is 83724442759.

83724442738 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., 44239970889 + 39484471849 = 210333^2 + 198707^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20931110683 + ... + 20931110686.

Almost surely, 2^83724442738 is an apocalyptic number.

83724442738 is a deficient number, since it is larger than the sum of its proper divisors (41862221372).

83724442738 is a wasteful number, since it uses less digits than its factorization.

83724442738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41862221371.

The product of its digits is 7225344, while the sum is 52.

The spelling of 83724442738 in words is "eighty-three billion, seven hundred twenty-four million, four hundred forty-two thousand, seven hundred thirty-eight".