31745021297 has 8 divisors (see below), whose sum is σ = 34705094112. Its totient is φ = 28797308800.

The previous prime is 31745021293. The next prime is 31745021311. The reversal of 31745021297 is 79212054713.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 31745021297 - 2² = 31745021293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31745021293) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3084704 + ... + 3094977.

It is an arithmetic number, because the mean of its divisors is an integer number (4338136764).

Almost surely, 2^31745021297 is an apocalyptic number.

It is an amenable number.

31745021297 is a deficient number, since it is larger than the sum of its proper divisors (2960072815).

31745021297 is a wasteful number, since it uses less digits than its factorization.

31745021297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6180159.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 31745021297 in words is "thirty-one billion, seven hundred forty-five million, twenty-one thousand, two hundred ninety-seven".