31381854734 has 16 divisors (see below), whose sum is σ = 48181931136. Its totient is φ = 15325342200.

The previous prime is 31381854719. The next prime is 31381854781. The reversal of 31381854734 is 43745818313.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1017512 + ... + 1047899.

It is an arithmetic number, because the mean of its divisors is an integer number (3011370696).

Almost surely, 2^31381854734 is an apocalyptic number.

31381854734 is a deficient number, since it is larger than the sum of its proper divisors (16800076402).

31381854734 is a wasteful number, since it uses less digits than its factorization.

31381854734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065591.

The product of its digits is 967680, while the sum is 47.

The spelling of 31381854734 in words is "thirty-one billion, three hundred eighty-one million, eight hundred fifty-four thousand, seven hundred thirty-four".