84505131053531 has 8 divisors (see below), whose sum is σ = 85894517838000. Its totient is φ = 83115875132640.

The previous prime is 84505131053521. The next prime is 84505131053579. The reversal of 84505131053531 is 13535013150548.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84505131053531 - 2³⁸ = 84230253146587 is a prime.

It is a super-2 number, since 2×84505131053531² (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 (84505131053521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31413356 + ... + 33997193.

It is an arithmetic number, because the mean of its divisors is an integer number (10736814729750).

Almost surely, 2^{84505131053531} is an apocalyptic number.

84505131053531 is a deficient number, since it is larger than the sum of its proper divisors (1389386784469).

84505131053531 is a wasteful number, since it uses less digits than its factorization.

84505131053531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65431789.

The product of its (nonzero) digits is 540000, while the sum is 44.

The spelling of 84505131053531 in words is "eighty-four trillion, five hundred five billion, one hundred thirty-one million, fifty-three thousand, five hundred thirty-one".