31648129105 has 8 divisors (see below), whose sum is σ = 37985580864. Its totient is φ = 25313286000.

The previous prime is 31648129081. The next prime is 31648129127. The reversal of 31648129105 is 50192184613.

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

It is not a de Polignac number, because 31648129105 - 2¹⁹ = 31647604817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 625371 + ... + 674080.

It is an arithmetic number, because the mean of its divisors is an integer number (4748197608).

Almost surely, 2^31648129105 is an apocalyptic number.

It is an amenable number.

31648129105 is a deficient number, since it is larger than the sum of its proper divisors (6337451759).

31648129105 is a wasteful number, since it uses less digits than its factorization.

31648129105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304327.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 31648129105 in words is "thirty-one billion, six hundred forty-eight million, one hundred twenty-nine thousand, one hundred five".