32397766464 has 112 divisors (see below), whose sum is σ = 98386075008. Its totient is φ = 9216688128.

The previous prime is 32397766463. The next prime is 32397766477. The reversal of 32397766464 is 46466779323.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32397766463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261424 + ... + 364880.

Almost surely, 2^32397766464 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 32397766464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49193037504).

32397766464 is an abundant number, since it is smaller than the sum of its proper divisors (65988308544).

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

32397766464 is a wasteful number, since it uses less digits than its factorization.

32397766464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103712 (or 103702 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 57.

The spelling of 32397766464 in words is "thirty-two billion, three hundred ninety-seven million, seven hundred sixty-six thousand, four hundred sixty-four".