40245370373506 has 4 divisors (see below), whose sum is σ = 60368055560262. Its totient is φ = 20122685186752.

The previous prime is 40245370373503. The next prime is 40245370373521. The reversal of 40245370373506 is 60537307354204.

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

It can be written as a sum of positive squares in only one way, i.e., 35851772893225 + 4393597480281 = 5987635^2 + 2096091^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40245370373506.

It is not an unprimeable number, because it can be changed into a prime (40245370373503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061342593375 + ... + 10061342593378.

Almost surely, 2^{40245370373506} is an apocalyptic number.

40245370373506 is a deficient number, since it is larger than the sum of its proper divisors (20122685186756).

40245370373506 is a wasteful number, since it uses less digits than its factorization.

40245370373506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20122685186755.

The product of its (nonzero) digits is 6350400, while the sum is 49.

The spelling of 40245370373506 in words is "forty trillion, two hundred forty-five billion, three hundred seventy million, three hundred seventy-three thousand, five hundred six".