32720718241 has 16 divisors (see below), whose sum is σ = 34395143760. Its totient is φ = 31084784640.

The previous prime is 32720718221. The next prime is 32720718257. The reversal of 32720718241 is 14281702723.

It can be written as a sum of positive squares in 8 ways, for example, as 421439841 + 32299278400 = 20529^2 + 179720^2 .

It is a cyclic number.

It is not a de Polignac number, because 32720718241 - 2¹³ = 32720710049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32720718241.

It is not an unprimeable number, because it can be changed into a prime (32720718221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 872901 + ... + 909613.

It is an arithmetic number, because the mean of its divisors is an integer number (2149696485).

Almost surely, 2^32720718241 is an apocalyptic number.

It is an amenable number.

32720718241 is a deficient number, since it is larger than the sum of its proper divisors (1674425519).

32720718241 is a wasteful number, since it uses less digits than its factorization.

32720718241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37236.

The product of its (nonzero) digits is 37632, while the sum is 37.

The spelling of 32720718241 in words is "thirty-two billion, seven hundred twenty million, seven hundred eighteen thousand, two hundred forty-one".