85868131532659 has 8 divisors (see below), whose sum is σ = 98135064463968. Its totient is φ = 73601212850880.

The previous prime is 85868131532531. The next prime is 85868131532741. The reversal of 85868131532659 is 95623513186858.

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 85868131532659 - 2⁷ = 85868131532531 is a prime.

It is a super-2 number, since 2×85868131532659² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85868131532159) 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, 18273729 + ... + 22487005.

It is an arithmetic number, because the mean of its divisors is an integer number (12266883057996).

Almost surely, 2^{85868131532659} is an apocalyptic number.

85868131532659 is a deficient number, since it is larger than the sum of its proper divisors (12266932931309).

85868131532659 is a wasteful number, since it uses less digits than its factorization.

85868131532659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7124765.

The product of its digits is 373248000, while the sum is 70.

The spelling of 85868131532659 in words is "eighty-five trillion, eight hundred sixty-eight billion, one hundred thirty-one million, five hundred thirty-two thousand, six hundred fifty-nine".