31426664474 has 16 divisors (see below), whose sum is σ = 49916834496. Its totient is φ = 14787864000.

The previous prime is 31426664473. The next prime is 31426664557. The reversal of 31426664474 is 47446662413.

It is a super-2 number, since 2×31426664474² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31426664473) 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, 538379 + ... + 593889.

It is an arithmetic number, because the mean of its divisors is an integer number (3119802156).

Almost surely, 2^31426664474 is an apocalyptic number.

31426664474 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31426664474 is a deficient number, since it is larger than the sum of its proper divisors (18490170022).

31426664474 is a wasteful number, since it uses less digits than its factorization.

31426664474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72181.

The product of its digits is 2322432, while the sum is 47.

The spelling of 31426664474 in words is "thirty-one billion, four hundred twenty-six million, six hundred sixty-four thousand, four hundred seventy-four".