40168173047 has 2 divisors, whose sum is σ = 40168173048. Its totient is φ = 40168173046.

The previous prime is 40168172963. The next prime is 40168173077. The reversal of 40168173047 is 74037186104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40168173047 - 2¹² = 40168168951 is a prime.

It is a super-2 number, since 2×40168173047² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40168172995 and 40168173013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40168173077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20084086523 + 20084086524.

It is an arithmetic number, because the mean of its divisors is an integer number (20084086524).

Almost surely, 2^40168173047 is an apocalyptic number.

40168173047 is a deficient number, since it is larger than the sum of its proper divisors (1).

40168173047 is an equidigital number, since it uses as much as digits as its factorization.

40168173047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 40168173047 in words is "forty billion, one hundred sixty-eight million, one hundred seventy-three thousand, forty-seven".