31474406305 has 8 divisors (see below), whose sum is σ = 39991010472. Its totient is φ = 23698376448.

The previous prime is 31474406303. The next prime is 31474406311. The reversal of 31474406305 is 50360447413.

It can be written as a sum of positive squares in 4 ways, for example, as 13389266944 + 18085139361 = 115712^2 + 134481^2 .

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

It is not a de Polignac number, because 31474406305 - 2¹ = 31474406303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31474406303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185143482 + ... + 185143651.

It is an arithmetic number, because the mean of its divisors is an integer number (4998876309).

Almost surely, 2^31474406305 is an apocalyptic number.

It is an amenable number.

31474406305 is a deficient number, since it is larger than the sum of its proper divisors (8516604167).

31474406305 is a wasteful number, since it uses less digits than its factorization.

31474406305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370287155.

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 31474406305 in words is "thirty-one billion, four hundred seventy-four million, four hundred six thousand, three hundred five".