31426140366 has 24 divisors (see below), whose sum is σ = 68387315880. Its totient is φ = 10429634736.

The previous prime is 31426140293. The next prime is 31426140407. The reversal of 31426140366 is 66304162413.

31426140366 is a `hidden beast` number, since 3 + 1 + 4 + 2 + 614 + 0 + 36 + 6 = 666.

It is a super-2 number, since 2×31426140366² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31426140366.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3807880 + ... + 3816123.

It is an arithmetic number, because the mean of its divisors is an integer number (2849471495).

Almost surely, 2^31426140366 is an apocalyptic number.

31426140366 is an abundant number, since it is smaller than the sum of its proper divisors (36961175514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31426140366 is a wasteful number, since it uses less digits than its factorization.

31426140366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7624240 (or 7624237 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 31426140366 in words is "thirty-one billion, four hundred twenty-six million, one hundred forty thousand, three hundred sixty-six".