404136411389 has 2 divisors, whose sum is σ = 404136411390. Its totient is φ = 404136411388.

The previous prime is 404136411359. The next prime is 404136411401. The reversal of 404136411389 is 983114631404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272632268164 + 131504143225 = 522142^2 + 362635^2 .

It is a cyclic number.

It is not a de Polignac number, because 404136411389 - 2¹² = 404136407293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404136411319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202068205694 + 202068205695.

It is an arithmetic number, because the mean of its divisors is an integer number (202068205695).

Almost surely, 2^404136411389 is an apocalyptic number.

It is an amenable number.

404136411389 is a deficient number, since it is larger than the sum of its proper divisors (1).

404136411389 is an equidigital number, since it uses as much as digits as its factorization.

404136411389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 404136411389 in words is "four hundred four billion, one hundred thirty-six million, four hundred eleven thousand, three hundred eighty-nine".