40197844383 has 4 divisors (see below), whose sum is σ = 53597125848. Its totient is φ = 26798562920.

The previous prime is 40197844339. The next prime is 40197844391. The reversal of 40197844383 is 38344879104.

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

It is a cyclic number.

It is not a de Polignac number, because 40197844383 - 2⁶ = 40197844319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40197844333) 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, 6699640728 + ... + 6699640733.

It is an arithmetic number, because the mean of its divisors is an integer number (13399281462).

Almost surely, 2^40197844383 is an apocalyptic number.

40197844383 is a deficient number, since it is larger than the sum of its proper divisors (13399281465).

40197844383 is a wasteful number, since it uses less digits than its factorization.

40197844383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13399281464.

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 40197844383 in words is "forty billion, one hundred ninety-seven million, eight hundred forty-four thousand, three hundred eighty-three".