31368260661 has 8 divisors (see below), whose sum is σ = 41825360544. Its totient is φ = 20911667280.

The previous prime is 31368260587. The next prime is 31368260681. The reversal of 31368260661 is 16606286313.

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

It is not a de Polignac number, because 31368260661 - 2⁹ = 31368260149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31368260681) 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 7 ways as a sum of consecutive naturals, for example, 55170 + ... + 256476.

It is an arithmetic number, because the mean of its divisors is an integer number (5228170068).

Almost surely, 2^31368260661 is an apocalyptic number.

It is an amenable number.

31368260661 is a deficient number, since it is larger than the sum of its proper divisors (10457099883).

31368260661 is a wasteful number, since it uses less digits than its factorization.

31368260661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253251.

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 31368260661 in words is "thirty-one billion, three hundred sixty-eight million, two hundred sixty thousand, six hundred sixty-one".