40047167471 has 4 divisors (see below), whose sum is σ = 40899234912. Its totient is φ = 39195100032.

The previous prime is 40047167443. The next prime is 40047167477. The reversal of 40047167471 is 17476174004.

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-40047167471 is a prime.

It is a super-3 number, since 3×40047167471³ (a number of 33 digits) contains 333 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 (40047167477) 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, 426033650 + ... + 426033743.

It is an arithmetic number, because the mean of its divisors is an integer number (10224808728).

Almost surely, 2^40047167471 is an apocalyptic number.

40047167471 is a deficient number, since it is larger than the sum of its proper divisors (852067441).

40047167471 is an equidigital number, since it uses as much as digits as its factorization.

40047167471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852067440.

The product of its (nonzero) digits is 131712, while the sum is 41.

The spelling of 40047167471 in words is "forty billion, forty-seven million, one hundred sixty-seven thousand, four hundred seventy-one".