31783461434 has 4 divisors (see below), whose sum is σ = 47675192154. Its totient is φ = 15891730716.

The previous prime is 31783461431. The next prime is 31783461439. The reversal of 31783461434 is 43416438713.

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 only one way, i.e., 30048489025 + 1734972409 = 173345^2 + 41653^2 .

It is not an unprimeable number, because it can be changed into a prime (31783461431) by changing a digit.

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 as a sum of consecutive naturals, namely, 7945865357 + ... + 7945865360.

Almost surely, 2^31783461434 is an apocalyptic number.

31783461434 is a deficient number, since it is larger than the sum of its proper divisors (15891730720).

31783461434 is a wasteful number, since it uses less digits than its factorization.

31783461434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15891730719.

The product of its digits is 580608, while the sum is 44.

The spelling of 31783461434 in words is "thirty-one billion, seven hundred eighty-three million, four hundred sixty-one thousand, four hundred thirty-four".