83575218027749 has 16 divisors (see below), whose sum is σ = 102042236812800. Its totient is φ = 66852671309424.

The previous prime is 83575218027739. The next prime is 83575218027757. The reversal of 83575218027749 is 94772081257538.

It is a happy number.

It is not a de Polignac number, because 83575218027749 - 2²⁴ = 83575201250533 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 (83575218027739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4689432119 + ... + 4689449940.

It is an arithmetic number, because the mean of its divisors is an integer number (6377639800800).

Almost surely, 2^{83575218027749} is an apocalyptic number.

It is an amenable number.

83575218027749 is a deficient number, since it is larger than the sum of its proper divisors (18467018785051).

83575218027749 is a wasteful number, since it uses less digits than its factorization.

83575218027749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9378882152.

The product of its (nonzero) digits is 237081600, while the sum is 68.

The spelling of 83575218027749 in words is "eighty-three trillion, five hundred seventy-five billion, two hundred eighteen million, twenty-seven thousand, seven hundred forty-nine".