12721982037 has 8 divisors (see below), whose sum is σ = 16974371136. Its totient is φ = 8475457152.

The previous prime is 12721982017. The next prime is 12721982059. The reversal of 12721982037 is 73028912721.

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

It is not a de Polignac number, because 12721982037 - 2¹² = 12721977941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12721982037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12721982017) 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, 1460988 + ... + 1469669.

It is an arithmetic number, because the mean of its divisors is an integer number (2121796392).

Almost surely, 2^12721982037 is an apocalyptic number.

It is an amenable number.

12721982037 is a deficient number, since it is larger than the sum of its proper divisors (4252389099).

12721982037 is a wasteful number, since it uses less digits than its factorization.

12721982037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932107.

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 12721982037 in words is "twelve billion, seven hundred twenty-one million, nine hundred eighty-two thousand, thirty-seven".