40255218291 has 8 divisors (see below), whose sum is σ = 53674569360. Its totient is φ = 26836339712.

The previous prime is 40255218277. The next prime is 40255218307. The reversal of 40255218291 is 19281255204.

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 40255218291 - 2²³ = 40246829683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40255218491) 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, 214411 + ... + 355643.

It is an arithmetic number, because the mean of its divisors is an integer number (6709321170).

Almost surely, 2^40255218291 is an apocalyptic number.

40255218291 is a deficient number, since it is larger than the sum of its proper divisors (13419351069).

40255218291 is a wasteful number, since it uses less digits than its factorization.

40255218291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236245.

The product of its (nonzero) digits is 57600, while the sum is 39.

The spelling of 40255218291 in words is "forty billion, two hundred fifty-five million, two hundred eighteen thousand, two hundred ninety-one".