431350340204555 has 16 divisors (see below), whose sum is σ = 517677497704224. Its totient is φ = 345042214056960.

The previous prime is 431350340204543. The next prime is 431350340204587. The reversal of 431350340204555 is 555402043053134.

It is not a de Polignac number, because 431350340204555 - 2⁶ = 431350340204491 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3722555099 + ... + 3722670971.

It is an arithmetic number, because the mean of its divisors is an integer number (32354843606514).

Almost surely, 2^{431350340204555} is an apocalyptic number.

431350340204555 is a deficient number, since it is larger than the sum of its proper divisors (86327157499669).

431350340204555 is a wasteful number, since it uses less digits than its factorization.

431350340204555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191566.

The product of its (nonzero) digits is 2160000, while the sum is 44.

Adding to 431350340204555 its reverse (555402043053134), we get a palindrome (986752383257689).

The spelling of 431350340204555 in words is "four hundred thirty-one trillion, three hundred fifty billion, three hundred forty million, two hundred four thousand, five hundred fifty-five".