84655606531 has 4 divisors (see below), whose sum is σ = 86720377464. Its totient is φ = 82590835600.

The previous prime is 84655606481. The next prime is 84655606547. The reversal of 84655606531 is 13560655648.

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

It is a cyclic number.

It is not a de Polignac number, because 84655606531 - 2²³ = 84647217923 is a prime.

It is a super-2 number, since 2×84655606531² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84655606631) 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 3 ways as a sum of consecutive naturals, for example, 1032385405 + ... + 1032385486.

It is an arithmetic number, because the mean of its divisors is an integer number (21680094366).

Almost surely, 2^84655606531 is an apocalyptic number.

84655606531 is a deficient number, since it is larger than the sum of its proper divisors (2064770933).

84655606531 is a wasteful number, since it uses less digits than its factorization.

84655606531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064770932.

The product of its (nonzero) digits is 2592000, while the sum is 49.

The spelling of 84655606531 in words is "eighty-four billion, six hundred fifty-five million, six hundred six thousand, five hundred thirty-one".