4040404003997 has 2 divisors, whose sum is σ = 4040404003998. Its totient is φ = 4040404003996.

The previous prime is 4040404003967. The next prime is 4040404004011. The reversal of 4040404003997 is 7993004040404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2235844335076 + 1804559668921 = 1495274^2 + 1343339^2 .

It is a cyclic number.

It is not a de Polignac number, because 4040404003997 - 2³⁰ = 4039330262173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4040404003927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2020202001998 + 2020202001999.

It is an arithmetic number, because the mean of its divisors is an integer number (2020202001999).

Almost surely, 2^{4040404003997} is an apocalyptic number.

It is an amenable number.

4040404003997 is a deficient number, since it is larger than the sum of its proper divisors (1).

4040404003997 is an equidigital number, since it uses as much as digits as its factorization.

4040404003997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 4040404003997 in words is "four trillion, forty billion, four hundred four million, three thousand, nine hundred ninety-seven".