964378818 has 128 divisors (see below), whose sum is σ = 2412748800. Its totient is φ = 283481856.

The previous prime is 964378781. The next prime is 964378823. The reversal of 964378818 is 818873469.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2585280 + ... + 2585652.

It is an arithmetic number, because the mean of its divisors is an integer number (18849600).

Almost surely, 2^964378818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 964378818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1206374400).

964378818 is an abundant number, since it is smaller than the sum of its proper divisors (1448369982).

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

964378818 is a wasteful number, since it uses less digits than its factorization.

964378818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 547 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 964378818 is about 31054.4492464445. The cubic root of 964378818 is about 987.9824291925.

The spelling of 964378818 in words is "nine hundred sixty-four million, three hundred seventy-eight thousand, eight hundred eighteen".