31146544328 has 16 divisors (see below), whose sum is σ = 58425097500. Its totient is φ = 15566518336.

The previous prime is 31146544321. The next prime is 31146544337. The reversal of 31146544328 is 82344564113.

It can be written as a sum of positive squares in 2 ways, for example, as 31130367844 + 16176484 = 176438^2 + 4022^2 .

It is not an unprimeable number, because it can be changed into a prime (31146544321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 824603 + ... + 861546.

Almost surely, 2^31146544328 is an apocalyptic number.

It is an amenable number.

31146544328 is a deficient number, since it is larger than the sum of its proper divisors (27278553172).

31146544328 is a wasteful number, since it uses less digits than its factorization.

31146544328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688464 (or 1688460 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The spelling of 31146544328 in words is "thirty-one billion, one hundred forty-six million, five hundred forty-four thousand, three hundred twenty-eight".