85867708155638 has 16 divisors (see below), whose sum is σ = 136390392847584. Its totient is φ = 40404698248320.

The previous prime is 85867708155611. The next prime is 85867708155643. The reversal of 85867708155638 is 83655180776858.

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, 113210258 + ... + 113966213.

It is an arithmetic number, because the mean of its divisors is an integer number (8524399552974).

Almost surely, 2^{85867708155638} is an apocalyptic number.

85867708155638 is a deficient number, since it is larger than the sum of its proper divisors (50522684691946).

85867708155638 is a wasteful number, since it uses less digits than its factorization.

85867708155638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227187607.

The product of its (nonzero) digits is 2709504000, while the sum is 77.

The spelling of 85867708155638 in words is "eighty-five trillion, eight hundred sixty-seven billion, seven hundred eight million, one hundred fifty-five thousand, six hundred thirty-eight".