12970971805 has 8 divisors (see below), whose sum is σ = 16980181344. Its totient is φ = 9433434000.

The previous prime is 12970971803. The next prime is 12970971829. The reversal of 12970971805 is 50817907921.

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

It is not a de Polignac number, because 12970971805 - 2¹ = 12970971803 is a prime.

It is a super-2 number, since 2×12970971805² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12970971803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117917871 + ... + 117917980.

It is an arithmetic number, because the mean of its divisors is an integer number (2122522668).

Almost surely, 2^12970971805 is an apocalyptic number.

It is an amenable number.

12970971805 is a deficient number, since it is larger than the sum of its proper divisors (4009209539).

12970971805 is a wasteful number, since it uses less digits than its factorization.

12970971805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235835867.

The product of its (nonzero) digits is 317520, while the sum is 49.

The spelling of 12970971805 in words is "twelve billion, nine hundred seventy million, nine hundred seventy-one thousand, eight hundred five".