84199042237 has 4 divisors (see below), whose sum is σ = 84313912060. Its totient is φ = 84084172416.

The previous prime is 84199042231. The next prime is 84199042243. The reversal of 84199042237 is 73224099148.

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

It is an interprime number because it is at equal distance from previous prime (84199042231) and next prime (84199042243).

It can be written as a sum of positive squares in 2 ways, for example, as 74226822916 + 9972219321 = 272446^2 + 99861^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84199042237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84199042231) 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, 57433812 + ... + 57435277.

It is an arithmetic number, because the mean of its divisors is an integer number (21078478015).

Almost surely, 2^84199042237 is an apocalyptic number.

It is an amenable number.

84199042237 is a deficient number, since it is larger than the sum of its proper divisors (114869823).

84199042237 is a wasteful number, since it uses less digits than its factorization.

84199042237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114869822.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 84199042237 in words is "eighty-four billion, one hundred ninety-nine million, forty-two thousand, two hundred thirty-seven".