431542350385 has 4 divisors (see below), whose sum is σ = 517850820468. Its totient is φ = 345233880304.

The previous prime is 431542350361. The next prime is 431542350391. The reversal of 431542350385 is 583053245134.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 307643278336 + 123899072049 = 554656^2 + 351993^2 .

It is a cyclic number.

It is not a de Polignac number, because 431542350385 - 2⁹ = 431542349873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43154235034 + ... + 43154235043.

It is an arithmetic number, because the mean of its divisors is an integer number (129462705117).

Almost surely, 2^431542350385 is an apocalyptic number.

It is an amenable number.

431542350385 is a deficient number, since it is larger than the sum of its proper divisors (86308470083).

431542350385 is an equidigital number, since it uses as much as digits as its factorization.

431542350385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86308470082.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 431542350385 in words is "four hundred thirty-one billion, five hundred forty-two million, three hundred fifty thousand, three hundred eighty-five".