40818820923 has 6 divisors (see below), whose sum is σ = 58960519124. Its totient is φ = 27212547276.

The previous prime is 40818820919. The next prime is 40818820927. The reversal of 40818820923 is 32902881804.

40818820923 is a `hidden beast` number, since 408 + 18 + 8 + 209 + 23 = 666.

It is an interprime number because it is at equal distance from previous prime (40818820919) and next prime (40818820927).

It is not a de Polignac number, because 40818820923 - 2² = 40818820919 is a prime.

It is a super-2 number, since 2×40818820923² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40818820927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2267712265 + ... + 2267712282.

Almost surely, 2^40818820923 is an apocalyptic number.

40818820923 is a deficient number, since it is larger than the sum of its proper divisors (18141698201).

40818820923 is a wasteful number, since it uses less digits than its factorization.

40818820923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4535424553 (or 4535424550 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 40818820923 in words is "forty billion, eight hundred eighteen million, eight hundred twenty thousand, nine hundred twenty-three".