85947165887615 has 8 divisors (see below), whose sum is σ = 106693033515840. Its totient is φ = 66386776409632.

The previous prime is 85947165887593. The next prime is 85947165887651. The reversal of 85947165887615 is 51678856174958.

It is a happy number.

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 85947165887615 - 2³⁴ = 85929986018431 is a prime.

It is a super-2 number, since 2×85947165887615² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85947165887615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296369537399 + ... + 296369537688.

It is an arithmetic number, because the mean of its divisors is an integer number (13336629189480).

Almost surely, 2^{85947165887615} is an apocalyptic number.

85947165887615 is a deficient number, since it is larger than the sum of its proper divisors (20745867628225).

85947165887615 is a wasteful number, since it uses less digits than its factorization.

85947165887615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592739075121.

The product of its digits is 4064256000, while the sum is 80.

The spelling of 85947165887615 in words is "eighty-five trillion, nine hundred forty-seven billion, one hundred sixty-five million, eight hundred eighty-seven thousand, six hundred fifteen".