885408230691 has 10 divisors (see below), whose sum is σ = 1322646863252. Its totient is φ = 590272153740.

The previous prime is 885408230689. The next prime is 885408230753. The reversal of 885408230691 is 196032804588.

885408230691 is a `hidden beast` number, since 8 + 8 + 540 + 8 + 2 + 3 + 0 + 6 + 91 = 666.

885408230691 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 885408230691 - 2¹ = 885408230689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (885408234691) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5465482825 + ... + 5465482986.

Almost surely, 2^885408230691 is an apocalyptic number.

885408230691 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

885408230691 is a deficient number, since it is larger than the sum of its proper divisors (437238632561).

885408230691 is a wasteful number, since it uses less digits than its factorization.

885408230691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10930965823 (or 10930965814 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 885408230691 in words is "eight hundred eighty-five billion, four hundred eight million, two hundred thirty thousand, six hundred ninety-one".