878987746579 has 4 divisors (see below), whose sum is σ = 879053272984. Its totient is φ = 878922220176.

The previous prime is 878987746573. The next prime is 878987746619. The reversal of 878987746579 is 975647789878.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 878987746579 - 2⁷ = 878987746451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 878987746496 and 878987746505.

It is not an unprimeable number, because it can be changed into a prime (878987746573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32743077 + ... + 32769910.

It is an arithmetic number, because the mean of its divisors is an integer number (219763318246).

Almost surely, 2^878987746579 is an apocalyptic number.

878987746579 is a deficient number, since it is larger than the sum of its proper divisors (65526405).

878987746579 is a wasteful number, since it uses less digits than its factorization.

878987746579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65526404.

The product of its digits is 11948912640, while the sum is 85.

The spelling of 878987746579 in words is "eight hundred seventy-eight billion, nine hundred eighty-seven million, seven hundred forty-six thousand, five hundred seventy-nine".