1964865632 has 48 divisors (see below), whose sum is σ = 4027804704. Its totient is φ = 942720000.

The previous prime is 1964865631. The next prime is 1964865647. The reversal of 1964865632 is 2365684691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964865631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67757 + ... + 92307.

It is an arithmetic number, because the mean of its divisors is an integer number (83912598).

Almost surely, 2^1964865632 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 1964865632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2013902352).

1964865632 is an abundant number, since it is smaller than the sum of its proper divisors (2062939072).

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

1964865632 is a wasteful number, since it uses less digits than its factorization.

1964865632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24663 (or 24655 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 50.

The square root of 1964865632 is about 44326.8048927508. The cubic root of 1964865632 is about 1252.4996661633.

The spelling of 1964865632 in words is "one billion, nine hundred sixty-four million, eight hundred sixty-five thousand, six hundred thirty-two".