878427436075164 has 72 divisors (see below), whose sum is σ = 2256878220236640. Its totient is φ = 288008008848000.

The previous prime is 878427436075127. The next prime is 878427436075183. The reversal of 878427436075164 is 461570634724878.

878427436075164 is a `hidden beast` number, since 8 + 7 + 8 + 4 + 2 + 7 + 4 + 3 + 607 + 5 + 1 + 6 + 4 = 666.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 878427436075092 and 878427436075101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 925598689 + ... + 926547239.

It is an arithmetic number, because the mean of its divisors is an integer number (31345530836620).

Almost surely, 2^{878427436075164} is an apocalyptic number.

It is an amenable number.

878427436075164 is an abundant number, since it is smaller than the sum of its proper divisors (1378450784161476).

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

878427436075164 is a wasteful number, since it uses less digits than its factorization.

878427436075164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370331 (or 1370326 counting only the distinct ones).

The product of its (nonzero) digits is 1517322240, while the sum is 72.

The spelling of 878427436075164 in words is "eight hundred seventy-eight trillion, four hundred twenty-seven billion, four hundred thirty-six million, seventy-five thousand, one hundred sixty-four".