85863012687487 has 4 divisors (see below), whose sum is σ = 98129157357136. Its totient is φ = 73596868017840.

The previous prime is 85863012687467. The next prime is 85863012687503. The reversal of 85863012687487 is 78478621036858.

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 85863012687487 - 2²³ = 85863004298879 is a prime.

It is a super-3 number, since 3×85863012687487³ (a number of 43 digits) contains 333 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 (85863012687407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6133072334814 + ... + 6133072334827.

It is an arithmetic number, because the mean of its divisors is an integer number (24532289339284).

Almost surely, 2^{85863012687487} is an apocalyptic number.

85863012687487 is a deficient number, since it is larger than the sum of its proper divisors (12266144669649).

85863012687487 is a wasteful number, since it uses less digits than its factorization.

85863012687487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12266144669648.

The product of its (nonzero) digits is 867041280, while the sum is 73.

The spelling of 85863012687487 in words is "eighty-five trillion, eight hundred sixty-three billion, twelve million, six hundred eighty-seven thousand, four hundred eighty-seven".