83800272442 has 4 divisors (see below), whose sum is σ = 125700408666. Its totient is φ = 41900136220.

The previous prime is 83800272431. The next prime is 83800272449. The reversal of 83800272442 is 24427200838.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24427200838 = 2 ⋅12213600419.

It can be written as a sum of positive squares in only one way, i.e., 77305685521 + 6494586921 = 278039^2 + 80589^2 .

It is a super-2 number, since 2×83800272442² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83800272395 and 83800272404.

It is not an unprimeable number, because it can be changed into a prime (83800272449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20950068109 + ... + 20950068112.

Almost surely, 2^83800272442 is an apocalyptic number.

83800272442 is a deficient number, since it is larger than the sum of its proper divisors (41900136224).

83800272442 is a wasteful number, since it uses less digits than its factorization.

83800272442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41900136223.

The product of its (nonzero) digits is 172032, while the sum is 40.

The spelling of 83800272442 in words is "eighty-three billion, eight hundred million, two hundred seventy-two thousand, four hundred forty-two".