8261964936 has 96 divisors (see below), whose sum is σ = 23240131200. Its totient is φ = 2649644160.

The previous prime is 8261964923. The next prime is 8261964937. The reversal of 8261964936 is 6394691628.

8261964936 is a `hidden beast` number, since 8 + 2 + 61 + 96 + 493 + 6 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (8261964937) 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, 178966 + ... + 220346.

It is an arithmetic number, because the mean of its divisors is an integer number (242084700).

Almost surely, 2^8261964936 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 8261964936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11620065600).

8261964936 is an abundant number, since it is smaller than the sum of its proper divisors (14978166264).

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

8261964936 is a wasteful number, since it uses less digits than its factorization.

8261964936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41499 (or 41492 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 8261964936 is about 90895.3515643127. The cubic root of 8261964936 is about 2021.5963703426.

The spelling of 8261964936 in words is "eight billion, two hundred sixty-one million, nine hundred sixty-four thousand, nine hundred thirty-six".