31403564005 has 16 divisors (see below), whose sum is σ = 41132950848. Its totient is φ = 22826272000.

The previous prime is 31403563991. The next prime is 31403564009. The reversal of 31403564005 is 50046530413.

It is a de Polignac number, because none of the positive numbers 2^k-31403564005 is a prime.

It is a super-2 number, since 2×31403564005² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31403564009) 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, 58036 + ... + 257245.

It is an arithmetic number, because the mean of its divisors is an integer number (2570809428).

Almost surely, 2^31403564005 is an apocalyptic number.

It is an amenable number.

31403564005 is a deficient number, since it is larger than the sum of its proper divisors (9729386843).

31403564005 is a wasteful number, since it uses less digits than its factorization.

31403564005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317108.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 31403564005 in words is "thirty-one billion, four hundred three million, five hundred sixty-four thousand, five".