83904228078 has 16 divisors (see below), whose sum is σ = 183063770496. Its totient is φ = 25425523640.

The previous prime is 83904228071. The next prime is 83904228119. The reversal of 83904228078 is 87082240938.

It is a self number, because there is not a number n which added to its sum of digits gives 83904228078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83904228071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635638026 + ... + 635638157.

It is an arithmetic number, because the mean of its divisors is an integer number (11441485656).

Almost surely, 2^83904228078 is an apocalyptic number.

83904228078 is an abundant number, since it is smaller than the sum of its proper divisors (99159542418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83904228078 is a wasteful number, since it uses less digits than its factorization.

83904228078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271276199.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 83904228078 in words is "eighty-three billion, nine hundred four million, two hundred twenty-eight thousand, seventy-eight".