83085354533721 has 32 divisors (see below), whose sum is σ = 114145530880000. Its totient is φ = 53717548040640.

The previous prime is 83085354533693. The next prime is 83085354533723. The reversal of 83085354533721 is 12733545358038.

It is not a de Polignac number, because 83085354533721 - 2¹³ = 83085354525529 is a prime.

It is a super-2 number, since 2×83085354533721² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83085354533723) 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 31 ways as a sum of consecutive naturals, for example, 154742280 + ... + 155278278.

It is an arithmetic number, because the mean of its divisors is an integer number (3567047840000).

Almost surely, 2^{83085354533721} is an apocalyptic number.

It is an amenable number.

83085354533721 is a deficient number, since it is larger than the sum of its proper divisors (31060176346279).

83085354533721 is a wasteful number, since it uses less digits than its factorization.

83085354533721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540589.

The product of its (nonzero) digits is 36288000, while the sum is 57.

The spelling of 83085354533721 in words is "eighty-three trillion, eighty-five billion, three hundred fifty-four million, five hundred thirty-three thousand, seven hundred twenty-one".