869161968 has 80 divisors (see below), whose sum is σ = 2562291360. Its totient is φ = 281885184.

The previous prime is 869161949. The next prime is 869161991.

869161968 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11205 + ... + 43172.

It is an arithmetic number, because the mean of its divisors is an integer number (32028642).

Almost surely, 2^869161968 is an apocalyptic number.

It is an amenable number.

869161968 is an abundant number, since it is smaller than the sum of its proper divisors (1693129392).

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

869161968 is a wasteful number, since it uses less digits than its factorization.

869161968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54431 (or 54419 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 54.

The square root of 869161968 is about 29481.5530120107. The cubic root of 869161968 is about 954.3336517378. Note that the first 3 decimals are identical.

The spelling of 869161968 in words is "eight hundred sixty-nine million, one hundred sixty-one thousand, nine hundred sixty-eight".