32640017745 has 8 divisors (see below), whose sum is σ = 52224028416. Its totient is φ = 17408009456.

The previous prime is 32640017743. The next prime is 32640017789. The reversal of 32640017745 is 54771004623.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32640017745 - 2¹ = 32640017743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32640017743) 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, 1088000577 + ... + 1088000606.

It is an arithmetic number, because the mean of its divisors is an integer number (6528003552).

Almost surely, 2^32640017745 is an apocalyptic number.

It is an amenable number.

32640017745 is a deficient number, since it is larger than the sum of its proper divisors (19584010671).

32640017745 is a wasteful number, since it uses less digits than its factorization.

32640017745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176001191.

The product of its (nonzero) digits is 141120, while the sum is 39.

The spelling of 32640017745 in words is "thirty-two billion, six hundred forty million, seventeen thousand, seven hundred forty-five".