31423326645 has 8 divisors (see below), whose sum is σ = 50277322656. Its totient is φ = 16759107536.

The previous prime is 31423326629. The next prime is 31423326647. The reversal of 31423326645 is 54662332413.

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 31423326645 - 2⁴ = 31423326629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31423326647) 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, 1047444207 + ... + 1047444236.

It is an arithmetic number, because the mean of its divisors is an integer number (6284665332).

Almost surely, 2^31423326645 is an apocalyptic number.

It is an amenable number.

31423326645 is a deficient number, since it is larger than the sum of its proper divisors (18853996011).

31423326645 is a wasteful number, since it uses less digits than its factorization.

31423326645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094888451.

The product of its digits is 311040, while the sum is 39.

The spelling of 31423326645 in words is "thirty-one billion, four hundred twenty-three million, three hundred twenty-six thousand, six hundred forty-five".