31163348506 has 4 divisors (see below), whose sum is σ = 46745022762. Its totient is φ = 15581674252.

The previous prime is 31163348417. The next prime is 31163348507. The reversal of 31163348506 is 60584336113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 31157545225 + 5803281 = 176515^2 + 2409^2 .

It is not an unprimeable number, because it can be changed into a prime (31163348507) 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 as a sum of consecutive naturals, namely, 7790837125 + ... + 7790837128.

Almost surely, 2^31163348506 is an apocalyptic number.

31163348506 is a deficient number, since it is larger than the sum of its proper divisors (15581674256).

31163348506 is a wasteful number, since it uses less digits than its factorization.

31163348506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15581674255.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 31163348506 in words is "thirty-one billion, one hundred sixty-three million, three hundred forty-eight thousand, five hundred six".