40364650393 has 4 divisors (see below), whose sum is σ = 40382225460. Its totient is φ = 40347075328.

The previous prime is 40364650367. The next prime is 40364650477. The reversal of 40364650393 is 39305646304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27371386249 + 12993264144 = 165443^2 + 113988^2 .

It is a cyclic number.

It is not a de Polignac number, because 40364650393 - 2²¹ = 40362553241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40364650363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8784088 + ... + 8788681.

It is an arithmetic number, because the mean of its divisors is an integer number (10095556365).

Almost surely, 2^40364650393 is an apocalyptic number.

It is an amenable number.

40364650393 is a deficient number, since it is larger than the sum of its proper divisors (17575067).

40364650393 is a wasteful number, since it uses less digits than its factorization.

40364650393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17575066.

The product of its (nonzero) digits is 699840, while the sum is 43.

The spelling of 40364650393 in words is "forty billion, three hundred sixty-four million, six hundred fifty thousand, three hundred ninety-three".