85867615110552 has 128 divisors (see below), whose sum is σ = 244387614620160. Its totient is φ = 24886996485120.

The previous prime is 85867615110503. The next prime is 85867615110553. The reversal of 85867615110552 is 25501151676858.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85867615110553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69782778 + ... + 71002614.

It is an arithmetic number, because the mean of its divisors is an integer number (1909278239220).

Almost surely, 2^{85867615110552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85867615110552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122193807310080).

85867615110552 is an abundant number, since it is smaller than the sum of its proper divisors (158519999509608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85867615110552 is a wasteful number, since it uses less digits than its factorization.

85867615110552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231473 (or 1231469 counting only the distinct ones).

The product of its (nonzero) digits is 20160000, while the sum is 60.

The spelling of 85867615110552 in words is "eighty-five trillion, eight hundred sixty-seven billion, six hundred fifteen million, one hundred ten thousand, five hundred fifty-two".