40328700689 has 2 divisors, whose sum is σ = 40328700690. Its totient is φ = 40328700688.

The previous prime is 40328700661. The next prime is 40328700691. The reversal of 40328700689 is 98600782304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40224313600 + 104387089 = 200560^2 + 10217^2 .

It is a cyclic number.

It is not a de Polignac number, because 40328700689 - 2¹⁶ = 40328635153 is a prime.

Together with 40328700691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40328700589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20164350344 + 20164350345.

It is an arithmetic number, because the mean of its divisors is an integer number (20164350345).

Almost surely, 2^40328700689 is an apocalyptic number.

It is an amenable number.

40328700689 is a deficient number, since it is larger than the sum of its proper divisors (1).

40328700689 is an equidigital number, since it uses as much as digits as its factorization.

40328700689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 40328700689 in words is "forty billion, three hundred twenty-eight million, seven hundred thousand, six hundred eighty-nine".