878766000001 has 4 divisors (see below), whose sum is σ = 882537528132. Its totient is φ = 874994471872.

The previous prime is 878765999983. The next prime is 878766000023. The reversal of 878766000001 is 100000667878.

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

It can be written as a sum of positive squares in 2 ways, for example, as 402686699776 + 476079300225 = 634576^2 + 689985^2 .

It is a cyclic number.

It is not a de Polignac number, because 878766000001 - 2¹¹ = 878765997953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878766000401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1885763716 + ... + 1885764181.

It is an arithmetic number, because the mean of its divisors is an integer number (220634382033).

Almost surely, 2^878766000001 is an apocalyptic number.

It is an amenable number.

878766000001 is a deficient number, since it is larger than the sum of its proper divisors (3771528131).

878766000001 is a wasteful number, since it uses less digits than its factorization.

878766000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3771528130.

The product of its (nonzero) digits is 112896, while the sum is 43.

Adding to 878766000001 its reverse (100000667878), we get a palindrome (978766667879).

The spelling of 878766000001 in words is "eight hundred seventy-eight billion, seven hundred sixty-six million, one", and thus it is an aban number.