861316848 has 160 divisors (see below), whose sum is σ = 2894814720. Its totient is φ = 240053760.

The previous prime is 861316829. The next prime is 861316867. The reversal of 861316848 is 848613168.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (861316829) and next prime (861316867).

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 31 ways as a sum of consecutive naturals, for example, 120511 + ... + 127457.

It is an arithmetic number, because the mean of its divisors is an integer number (18092592).

Almost surely, 2^861316848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 861316848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1447407360).

861316848 is an abundant number, since it is smaller than the sum of its proper divisors (2033497872).

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

861316848 is a wasteful number, since it uses less digits than its factorization.

861316848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7012 (or 7000 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 861316848 is about 29348.2000810953. The cubic root of 861316848 is about 951.4536740162.

The spelling of 861316848 in words is "eight hundred sixty-one million, three hundred sixteen thousand, eight hundred forty-eight".