84536053321 has 4 divisors (see below), whose sum is σ = 84539050372. Its totient is φ = 84533056272.

The previous prime is 84536053223. The next prime is 84536053331. The reversal of 84536053321 is 12335063548.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12862054921 + 71673998400 = 113411^2 + 267720^2 .

It is a cyclic number.

It is not a de Polignac number, because 84536053321 - 2¹⁷ = 84535922249 is a prime.

It is a super-2 number, since 2×84536053321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84536053331) 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, 1455810 + ... + 1512763.

It is an arithmetic number, because the mean of its divisors is an integer number (21134762593).

Almost surely, 2^84536053321 is an apocalyptic number.

It is an amenable number.

84536053321 is a deficient number, since it is larger than the sum of its proper divisors (2997051).

84536053321 is a wasteful number, since it uses less digits than its factorization.

84536053321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997050.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 84536053321 in words is "eighty-four billion, five hundred thirty-six million, fifty-three thousand, three hundred twenty-one".