431350885381 has 8 divisors (see below), whose sum is σ = 491857118424. Its totient is φ = 374748280320.

The previous prime is 431350885379. The next prime is 431350885397. The reversal of 431350885381 is 183588053134.

It can be written as a sum of positive squares in 4 ways, for example, as 15853328100 + 415497557281 = 125910^2 + 644591^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 431350885381 - 2¹ = 431350885379 is a prime.

It is a super-2 number, since 2×431350885381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431350885321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 975906760 + ... + 975907201.

It is an arithmetic number, because the mean of its divisors is an integer number (61482139803).

Almost surely, 2^431350885381 is an apocalyptic number.

It is an amenable number.

431350885381 is a deficient number, since it is larger than the sum of its proper divisors (60506233043).

431350885381 is a wasteful number, since it uses less digits than its factorization.

431350885381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951813991.

The product of its (nonzero) digits is 1382400, while the sum is 49.

The spelling of 431350885381 in words is "four hundred thirty-one billion, three hundred fifty million, eight hundred eighty-five thousand, three hundred eighty-one".