31742808819 has 8 divisors (see below), whose sum is σ = 42336579792. Its totient is φ = 21155455200.

The previous prime is 31742808803. The next prime is 31742808847. The reversal of 31742808819 is 91880824713.

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

It is not a de Polignac number, because 31742808819 - 2⁴ = 31742808803 is a prime.

It is a super-2 number, since 2×31742808819² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31742800819) 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 in 7 ways as a sum of consecutive naturals, for example, 1592784 + ... + 1612589.

It is an arithmetic number, because the mean of its divisors is an integer number (5292072474).

Almost surely, 2^31742808819 is an apocalyptic number.

31742808819 is a deficient number, since it is larger than the sum of its proper divisors (10593770973).

31742808819 is a wasteful number, since it uses less digits than its factorization.

31742808819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3208677.

The product of its (nonzero) digits is 774144, while the sum is 51.

The spelling of 31742808819 in words is "thirty-one billion, seven hundred forty-two million, eight hundred eight thousand, eight hundred nineteen".