40136218903 has 8 divisors (see below), whose sum is σ = 43791215616. Its totient is φ = 36482263800.

The previous prime is 40136218883. The next prime is 40136218907. The reversal of 40136218903 is 30981263104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40136218903 - 2²¹ = 40134121751 is a prime.

It is a super-2 number, since 2×40136218903² (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 (40136218907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178713 + ... + 334978.

It is an arithmetic number, because the mean of its divisors is an integer number (5473901952).

Almost surely, 2^40136218903 is an apocalyptic number.

40136218903 is a deficient number, since it is larger than the sum of its proper divisors (3654996713).

40136218903 is a wasteful number, since it uses less digits than its factorization.

40136218903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520805.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 40136218903 in words is "forty billion, one hundred thirty-six million, two hundred eighteen thousand, nine hundred three".