431727839450 has 24 divisors (see below), whose sum is σ = 808128533532. Its totient is φ = 171591189120.

The previous prime is 431727839401. The next prime is 431727839461. The reversal of 431727839450 is 54938727134.

It can be written as a sum of positive squares in 6 ways, for example, as 276626558209 + 155101281241 = 525953^2 + 393829^2 .

It is a junction number, because it is equal to n+sod(n) for n = 431727839392 and 431727839401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27490739 + ... + 27506438.

Almost surely, 2^431727839450 is an apocalyptic number.

431727839450 is a deficient number, since it is larger than the sum of its proper divisors (376400694082).

431727839450 is a wasteful number, since it uses less digits than its factorization.

431727839450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54997346 (or 54997341 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 431727839450 in words is "four hundred thirty-one billion, seven hundred twenty-seven million, eight hundred thirty-nine thousand, four hundred fifty".