40918148469 has 24 divisors (see below), whose sum is σ = 64483522272. Its totient is φ = 24796401120.

The previous prime is 40918148449. The next prime is 40918148471. The reversal of 40918148469 is 96484181904.

It is a happy number.

It is not a de Polignac number, because 40918148469 - 2²¹ = 40916051317 is a prime.

It is a super-2 number, since 2×40918148469² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40918148449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1678522 + ... + 1702724.

It is an arithmetic number, because the mean of its divisors is an integer number (2686813428).

Almost surely, 2^40918148469 is an apocalyptic number.

It is an amenable number.

40918148469 is a deficient number, since it is larger than the sum of its proper divisors (23565373803).

40918148469 is a wasteful number, since it uses less digits than its factorization.

40918148469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41297 (or 41294 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 40918148469 in words is "forty billion, nine hundred eighteen million, one hundred forty-eight thousand, four hundred sixty-nine".