12791640073 has 8 divisors (see below), whose sum is σ = 13245353280. Its totient is φ = 12338768400.

The previous prime is 12791640053. The next prime is 12791640079. The reversal of 12791640073 is 37004619721.

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

It is a cyclic number.

It is not a de Polignac number, because 12791640073 - 2²¹ = 12789542921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12791640079) 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, 179365 + ... + 240322.

It is an arithmetic number, because the mean of its divisors is an integer number (1655669160).

Almost surely, 2^12791640073 is an apocalyptic number.

It is an amenable number.

12791640073 is a deficient number, since it is larger than the sum of its proper divisors (453713207).

12791640073 is a wasteful number, since it uses less digits than its factorization.

12791640073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420767.

The product of its (nonzero) digits is 63504, while the sum is 40.

It can be divided in two parts, 12791 and 640073, that added together give a square (652864 = 808²).

The spelling of 12791640073 in words is "twelve billion, seven hundred ninety-one million, six hundred forty thousand, seventy-three".