400432310461 has 2 divisors, whose sum is σ = 400432310462. Its totient is φ = 400432310460.

The previous prime is 400432310429. The next prime is 400432310477. The reversal of 400432310461 is 164013234004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 309810239236 + 90622071225 = 556606^2 + 301035^2 .

It is a cyclic number.

It is not a de Polignac number, because 400432310461 - 2⁵ = 400432310429 is a prime.

It is a super-2 number, since 2×400432310461² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400432310401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200216155230 + 200216155231.

It is an arithmetic number, because the mean of its divisors is an integer number (200216155231).

Almost surely, 2^400432310461 is an apocalyptic number.

It is an amenable number.

400432310461 is a deficient number, since it is larger than the sum of its proper divisors (1).

400432310461 is an equidigital number, since it uses as much as digits as its factorization.

400432310461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 400432310461 its reverse (164013234004), we get a palindrome (564445544465).

The spelling of 400432310461 in words is "four hundred billion, four hundred thirty-two million, three hundred ten thousand, four hundred sixty-one".