40937864843 has 4 divisors (see below), whose sum is σ = 40942055808. Its totient is φ = 40933673880.

The previous prime is 40937864839. The next prime is 40937864893. The reversal of 40937864843 is 34846873904.

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 40937864843 - 2² = 40937864839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40937864833) 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, 2080796 + ... + 2100377.

It is an arithmetic number, because the mean of its divisors is an integer number (10235513952).

Almost surely, 2^40937864843 is an apocalyptic number.

40937864843 is a deficient number, since it is larger than the sum of its proper divisors (4190965).

40937864843 is an equidigital number, since it uses as much as digits as its factorization.

40937864843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190964.

The product of its (nonzero) digits is 13934592, while the sum is 56.

The spelling of 40937864843 in words is "forty billion, nine hundred thirty-seven million, eight hundred sixty-four thousand, eight hundred forty-three".