84575730613531 has 4 divisors (see below), whose sum is σ = 86638553311464. Its totient is φ = 82512907915600.

The previous prime is 84575730613483. The next prime is 84575730613541. The reversal of 84575730613531 is 13531603757548.

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 84575730613531 - 2⁹ = 84575730613019 is a prime.

It is a super-2 number, since 2×84575730613531² (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 (84575730613541) 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, 1031411348905 + ... + 1031411348986.

It is an arithmetic number, because the mean of its divisors is an integer number (21659638327866).

Almost surely, 2^{84575730613531} is an apocalyptic number.

84575730613531 is a deficient number, since it is larger than the sum of its proper divisors (2062822697933).

84575730613531 is a wasteful number, since it uses less digits than its factorization.

84575730613531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062822697932.

The product of its (nonzero) digits is 31752000, while the sum is 58.

The spelling of 84575730613531 in words is "eighty-four trillion, five hundred seventy-five billion, seven hundred thirty million, six hundred thirteen thousand, five hundred thirty-one".