1964228573632 has 28 divisors (see below), whose sum is σ = 4197594237256. Its totient is φ = 906567033600.

The previous prime is 1964228573621. The next prime is 1964228573633. The reversal of 1964228573632 is 2363758224691.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964228573633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1180424994 + ... + 1180426657.

It is an arithmetic number, because the mean of its divisors is an integer number (149914079902).

Almost surely, 2^{1964228573632} is an apocalyptic number.

It is an amenable number.

1964228573632 is an abundant number, since it is smaller than the sum of its proper divisors (2233365663624).

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

1964228573632 is a wasteful number, since it uses less digits than its factorization.

1964228573632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360851676 (or 2360851666 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 58.

The spelling of 1964228573632 in words is "one trillion, nine hundred sixty-four billion, two hundred twenty-eight million, five hundred seventy-three thousand, six hundred thirty-two".