40663939031 has 4 divisors (see below), whose sum is σ = 41655742464. Its totient is φ = 39672135600.

The previous prime is 40663939013. The next prime is 40663939033. The reversal of 40663939031 is 13093936604.

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 40663939031 - 2⁶ = 40663938967 is a prime.

It is a super-2 number, since 2×40663939031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40663939033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495901655 + ... + 495901736.

It is an arithmetic number, because the mean of its divisors is an integer number (10413935616).

Almost surely, 2^40663939031 is an apocalyptic number.

40663939031 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40663939031 is a deficient number, since it is larger than the sum of its proper divisors (991803433).

40663939031 is an equidigital number, since it uses as much as digits as its factorization.

40663939031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991803432.

The product of its (nonzero) digits is 314928, while the sum is 44.

The spelling of 40663939031 in words is "forty billion, six hundred sixty-three million, nine hundred thirty-nine thousand, thirty-one".