878765999983 has 2 divisors, whose sum is σ = 878765999984. Its totient is φ = 878765999982.

The previous prime is 878765999977. The next prime is 878766000023. The reversal of 878765999983 is 389999567878.

878765999983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 878765999983 - 2⁹ = 878765999471 is a prime.

It is a super-2 number, since 2×878765999983² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 878765999894 and 878765999903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (878765999963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439382999991 + 439382999992.

It is an arithmetic number, because the mean of its divisors is an integer number (439382999992).

Almost surely, 2^878765999983 is an apocalyptic number.

878765999983 is a deficient number, since it is larger than the sum of its proper divisors (1).

878765999983 is an equidigital number, since it uses as much as digits as its factorization.

878765999983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14814213120, while the sum is 88.

The spelling of 878765999983 in words is "eight hundred seventy-eight billion, seven hundred sixty-five million, nine hundred ninety-nine thousand, nine hundred eighty-three".