31426265163 has 16 divisors (see below), whose sum is σ = 42525340416. Its totient is φ = 20639482080.

The previous prime is 31426265153. The next prime is 31426265177. The reversal of 31426265163 is 36156262413.

It is not a de Polignac number, because 31426265163 - 2¹⁰ = 31426264139 is a prime.

It is a super-2 number, since 2×31426265163² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31426265113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215781 + ... + 330777.

It is an arithmetic number, because the mean of its divisors is an integer number (2657833776).

Almost surely, 2^31426265163 is an apocalyptic number.

31426265163 is a deficient number, since it is larger than the sum of its proper divisors (11099075253).

31426265163 is a wasteful number, since it uses less digits than its factorization.

31426265163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116354.

The product of its digits is 155520, while the sum is 39.

The spelling of 31426265163 in words is "thirty-one billion, four hundred twenty-six million, two hundred sixty-five thousand, one hundred sixty-three".