40004073667049 has 2 divisors, whose sum is σ = 40004073667050. Its totient is φ = 40004073667048.

The previous prime is 40004073667039. The next prime is 40004073667097. The reversal of 40004073667049 is 94076637040004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30493511100649 + 9510562566400 = 5522093^2 + 3083920^2 .

It is a cyclic number.

It is not a de Polignac number, because 40004073667049 - 2¹² = 40004073662953 is a prime.

It is a super-2 number, since 2×40004073667049² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40004073666988 and 40004073667006.

It is not a weakly prime, because it can be changed into another prime (40004073667039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20002036833524 + 20002036833525.

It is an arithmetic number, because the mean of its divisors is an integer number (20002036833525).

Almost surely, 2^{40004073667049} is an apocalyptic number.

It is an amenable number.

40004073667049 is a deficient number, since it is larger than the sum of its proper divisors (1).

40004073667049 is an equidigital number, since it uses as much as digits as its factorization.

40004073667049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 50.

The spelling of 40004073667049 in words is "forty trillion, four billion, seventy-three million, six hundred sixty-seven thousand, forty-nine".