84678331193 has 4 divisors (see below), whose sum is σ = 84679893120. Its totient is φ = 84676769268.

The previous prime is 84678331159. The next prime is 84678331207. The reversal of 84678331193 is 39113387648.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84678331193 - 2¹⁶ = 84678265657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84678331993) 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, 696605 + ... + 809082.

It is an arithmetic number, because the mean of its divisors is an integer number (21169973280).

Almost surely, 2^84678331193 is an apocalyptic number.

It is an amenable number.

84678331193 is a deficient number, since it is larger than the sum of its proper divisors (1561927).

84678331193 is a wasteful number, since it uses less digits than its factorization.

84678331193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561926.

The product of its digits is 2612736, while the sum is 53.

The spelling of 84678331193 in words is "eighty-four billion, six hundred seventy-eight million, three hundred thirty-one thousand, one hundred ninety-three".