40015031671 has 2 divisors, whose sum is σ = 40015031672. Its totient is φ = 40015031670.

The previous prime is 40015031629. The next prime is 40015031689. The reversal of 40015031671 is 17613051004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40015031671 - 2¹⁷ = 40014900599 is a prime.

It is a super-2 number, since 2×40015031671² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40015031611) 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 as a sum of consecutive naturals, namely, 20007515835 + 20007515836.

It is an arithmetic number, because the mean of its divisors is an integer number (20007515836).

Almost surely, 2^40015031671 is an apocalyptic number.

40015031671 is a deficient number, since it is larger than the sum of its proper divisors (1).

40015031671 is an equidigital number, since it uses as much as digits as its factorization.

40015031671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

Adding to 40015031671 its reverse (17613051004), we get a palindrome (57628082675).

The spelling of 40015031671 in words is "forty billion, fifteen million, thirty-one thousand, six hundred seventy-one".