84633122581 has 16 divisors (see below), whose sum is σ = 98122648320. Its totient is φ = 71494133760.

The previous prime is 84633122569. The next prime is 84633122611. The reversal of 84633122581 is 18522133648.

It is not a de Polignac number, because 84633122581 - 2⁹ = 84633122069 is a prime.

It is a super-2 number, since 2×84633122581² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84633122501) 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, 1355605 + ... + 1416661.

It is an arithmetic number, because the mean of its divisors is an integer number (6132665520).

Almost surely, 2^84633122581 is an apocalyptic number.

It is an amenable number.

84633122581 is a deficient number, since it is larger than the sum of its proper divisors (13489525739).

84633122581 is a wasteful number, since it uses less digits than its factorization.

84633122581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63924.

The product of its digits is 276480, while the sum is 43.

The spelling of 84633122581 in words is "eighty-four billion, six hundred thirty-three million, one hundred twenty-two thousand, five hundred eighty-one".