10404403987 has 2 divisors, whose sum is σ = 10404403988. Its totient is φ = 10404403986.

The previous prime is 10404403967. The next prime is 10404404051. The reversal of 10404403987 is 78930440401.

It is a weak prime.

It is an emirp because it is prime and its reverse (78930440401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10404403987 is a prime.

It is not a weakly prime, because it can be changed into another prime (10404403907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5202201993 + 5202201994.

It is an arithmetic number, because the mean of its divisors is an integer number (5202201994).

Almost surely, 2^10404403987 is an apocalyptic number.

10404403987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10404403987 is an equidigital number, since it uses as much as digits as its factorization.

10404403987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 10404403987 in words is "ten billion, four hundred four million, four hundred three thousand, nine hundred eighty-seven".