878161635815648 has 48 divisors (see below), whose sum is σ = 1729163639056896. Its totient is φ = 439008969663360.

The previous prime is 878161635815603. The next prime is 878161635815683. The reversal of 878161635815648 is 846518536161878.

It is a super-3 number, since 3×878161635815648³ (a number of 46 digits) contains 333 as substring.

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, 13443343115 + ... + 13443408437.

It is an arithmetic number, because the mean of its divisors is an integer number (36024242480352).

Almost surely, 2^{878161635815648} is an apocalyptic number.

It is an amenable number.

878161635815648 is a deficient number, since it is larger than the sum of its proper divisors (851002003241248).

878161635815648 is a wasteful number, since it uses less digits than its factorization.

878161635815648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127647 (or 127639 counting only the distinct ones).

The product of its digits is 1857945600, while the sum is 77.

The spelling of 878161635815648 in words is "eight hundred seventy-eight trillion, one hundred sixty-one billion, six hundred thirty-five million, eight hundred fifteen thousand, six hundred forty-eight".