31133447074 has 4 divisors (see below), whose sum is σ = 46700170614. Its totient is φ = 15566723536.

The previous prime is 31133447069. The next prime is 31133447083. The reversal of 31133447074 is 47074433113.

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., 15912056449 + 15221390625 = 126143^2 + 123375^2 .

It is a super-2 number, since 2×31133447074² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7783361767 + ... + 7783361770.

Almost surely, 2^31133447074 is an apocalyptic number.

31133447074 is a deficient number, since it is larger than the sum of its proper divisors (15566723540).

31133447074 is a wasteful number, since it uses less digits than its factorization.

31133447074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15566723539.

The product of its (nonzero) digits is 84672, while the sum is 37.

The spelling of 31133447074 in words is "thirty-one billion, one hundred thirty-three million, four hundred forty-seven thousand, seventy-four".