31643603225137 has 8 divisors (see below), whose sum is σ = 33310923796800. Its totient is φ = 29976469430544.

The previous prime is 31643603225123. The next prime is 31643603225147. The reversal of 31643603225137 is 73152230634613.

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 a de Polignac number, because none of the positive numbers 2^k-31643603225137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31643603225147) 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, 46346437 + ... + 47024242.

It is an arithmetic number, because the mean of its divisors is an integer number (4163865474600).

Almost surely, 2^{31643603225137} is an apocalyptic number.

It is an amenable number.

31643603225137 is a deficient number, since it is larger than the sum of its proper divisors (1667320571663).

31643603225137 is a wasteful number, since it uses less digits than its factorization.

31643603225137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93388535.

The product of its (nonzero) digits is 1632960, while the sum is 46.

The spelling of 31643603225137 in words is "thirty-one trillion, six hundred forty-three billion, six hundred three million, two hundred twenty-five thousand, one hundred thirty-seven".