40181314847 has 4 divisors (see below), whose sum is σ = 41928328560. Its totient is φ = 38434301136.

The previous prime is 40181314799. The next prime is 40181314861. The reversal of 40181314847 is 74841318104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40181314847 is a prime.

It is a super-2 number, since 2×40181314847² (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 (40181314897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 873506822 + ... + 873506867.

It is an arithmetic number, because the mean of its divisors is an integer number (10482082140).

Almost surely, 2^40181314847 is an apocalyptic number.

40181314847 is a deficient number, since it is larger than the sum of its proper divisors (1747013713).

40181314847 is a wasteful number, since it uses less digits than its factorization.

40181314847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747013712.

The product of its (nonzero) digits is 86016, while the sum is 41.

The spelling of 40181314847 in words is "forty billion, one hundred eighty-one million, three hundred fourteen thousand, eight hundred forty-seven".