436475392421 has 2 divisors, whose sum is σ = 436475392422. Its totient is φ = 436475392420.

The previous prime is 436475392417. The next prime is 436475392427. The reversal of 436475392421 is 124293574634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359310330625 + 77165061796 = 599425^2 + 277786^2 .

It is a cyclic number.

It is not a de Polignac number, because 436475392421 - 2² = 436475392417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 436475392421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (436475392427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218237696210 + 218237696211.

It is an arithmetic number, because the mean of its divisors is an integer number (218237696211).

Almost surely, 2^436475392421 is an apocalyptic number.

It is an amenable number.

436475392421 is a deficient number, since it is larger than the sum of its proper divisors (1).

436475392421 is an equidigital number, since it uses as much as digits as its factorization.

436475392421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 50.

The spelling of 436475392421 in words is "four hundred thirty-six billion, four hundred seventy-five million, three hundred ninety-two thousand, four hundred twenty-one".