878765654543232 has 128 divisors (see below), whose sum is σ = 2457192893126400. Its totient is φ = 277491630919680.

The previous prime is 878765654543201. The next prime is 878765654543267. The reversal of 878765654543232 is 232345456567878.

878765654543232 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Smith number, since the sum of its digits (75) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149761053 + ... + 155518179.

It is an arithmetic number, because the mean of its divisors is an integer number (19196819477550).

Almost surely, 2^{878765654543232} is an apocalyptic number.

It is an amenable number.

878765654543232 is an abundant number, since it is smaller than the sum of its proper divisors (1578427238583168).

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

878765654543232 is a wasteful number, since it uses less digits than its factorization.

878765654543232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5778084 (or 5778072 counting only the distinct ones).

The product of its digits is 8128512000, while the sum is 75.

The spelling of 878765654543232 in words is "eight hundred seventy-eight trillion, seven hundred sixty-five billion, six hundred fifty-four million, five hundred forty-three thousand, two hundred thirty-two".