31282742207 has 16 divisors (see below), whose sum is σ = 31996544832. Its totient is φ = 30573803520.

The previous prime is 31282742201. The next prime is 31282742237. The reversal of 31282742207 is 70224728213.

It is a cyclic number.

It is not a de Polignac number, because 31282742207 - 2⁴ = 31282742191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31282742201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20702582 + ... + 20704092.

It is an arithmetic number, because the mean of its divisors is an integer number (1999784052).

Almost surely, 2^31282742207 is an apocalyptic number.

31282742207 is a deficient number, since it is larger than the sum of its proper divisors (713802625).

31282742207 is a wasteful number, since it uses less digits than its factorization.

31282742207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818.

The product of its (nonzero) digits is 75264, while the sum is 38.

The spelling of 31282742207 in words is "thirty-one billion, two hundred eighty-two million, seven hundred forty-two thousand, two hundred seven".