869011506 has 48 divisors (see below), whose sum is σ = 2124869760. Its totient is φ = 254254560.

The previous prime is 869011501. The next prime is 869011513. The reversal of 869011506 is 605110968.

It is not an unprimeable number, because it can be changed into a prime (869011501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69930 + ... + 81413.

It is an arithmetic number, because the mean of its divisors is an integer number (44268120).

Almost surely, 2^869011506 is an apocalyptic number.

869011506 is an abundant number, since it is smaller than the sum of its proper divisors (1255858254).

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

869011506 is a wasteful number, since it uses less digits than its factorization.

869011506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151391 (or 151388 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 869011506 is about 29479.0011024797. The cubic root of 869011506 is about 954.2785798250.

The spelling of 869011506 in words is "eight hundred sixty-nine million, eleven thousand, five hundred six".