31426502163 has 48 divisors (see below), whose sum is σ = 49712507136. Its totient is φ = 17601554880.

The previous prime is 31426502143. The next prime is 31426502167. The reversal of 31426502163 is 36120562413.

It is not a de Polignac number, because 31426502163 - 2¹⁶ = 31426436627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31426502167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14264220 + ... + 14266422.

It is an arithmetic number, because the mean of its divisors is an integer number (1035677232).

Almost surely, 2^31426502163 is an apocalyptic number.

31426502163 is a deficient number, since it is larger than the sum of its proper divisors (18286004973).

31426502163 is a wasteful number, since it uses less digits than its factorization.

31426502163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4104 (or 4097 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 31426502163 in words is "thirty-one billion, four hundred twenty-six million, five hundred two thousand, one hundred sixty-three".