40295117947 has 4 divisors (see below), whose sum is σ = 46051563376. Its totient is φ = 34538672520.

The previous prime is 40295117923. The next prime is 40295117987. The reversal of 40295117947 is 74971159204.

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 40295117947 - 2¹¹ = 40295115899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40295117947.

It is not an unprimeable number, because it can be changed into a prime (40295117987) 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 3 ways as a sum of consecutive naturals, for example, 2878222704 + ... + 2878222717.

It is an arithmetic number, because the mean of its divisors is an integer number (11512890844).

Almost surely, 2^40295117947 is an apocalyptic number.

40295117947 is a deficient number, since it is larger than the sum of its proper divisors (5756445429).

40295117947 is an equidigital number, since it uses as much as digits as its factorization.

40295117947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5756445428.

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 40295117947 in words is "forty billion, two hundred ninety-five million, one hundred seventeen thousand, nine hundred forty-seven".