84442137115802 has 4 divisors (see below), whose sum is σ = 126663205673706. Its totient is φ = 42221068557900.

The previous prime is 84442137115789. The next prime is 84442137115811. The reversal of 84442137115802 is 20851173124448.

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., 78785488502161 + 5656648613641 = 8876119^2 + 2378371^2 .

It is a super-2 number, since 2×84442137115802² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21110534278949 + ... + 21110534278952.

Almost surely, 2^{84442137115802} is an apocalyptic number.

84442137115802 is a deficient number, since it is larger than the sum of its proper divisors (42221068557904).

84442137115802 is a wasteful number, since it uses less digits than its factorization.

84442137115802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42221068557903.

The product of its (nonzero) digits is 1720320, while the sum is 50.

The spelling of 84442137115802 in words is "eighty-four trillion, four hundred forty-two billion, one hundred thirty-seven million, one hundred fifteen thousand, eight hundred two".