40382815937 has 4 divisors (see below), whose sum is σ = 42758275716. Its totient is φ = 38007356160.

The previous prime is 40382815901. The next prime is 40382815969. The reversal of 40382815937 is 73951828304.

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 16424729281 + 23958086656 = 128159^2 + 154784^2 .

It is a cyclic number.

It is not a de Polignac number, because 40382815937 - 2⁶ = 40382815873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40382815637) 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, 1187729864 + ... + 1187729897.

It is an arithmetic number, because the mean of its divisors is an integer number (10689568929).

Almost surely, 2^40382815937 is an apocalyptic number.

It is an amenable number.

40382815937 is a deficient number, since it is larger than the sum of its proper divisors (2375459779).

40382815937 is a wasteful number, since it uses less digits than its factorization.

40382815937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375459778.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 40382815937 in words is "forty billion, three hundred eighty-two million, eight hundred fifteen thousand, nine hundred thirty-seven".