12594978511 has 8 divisors (see below), whose sum is σ = 12965065344. Its totient is φ = 12228399960.

The previous prime is 12594978509. The next prime is 12594978521. The reversal of 12594978511 is 11587949521.

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 12594978511 - 2¹ = 12594978509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12594978521) 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, 869785 + ... + 884146.

It is an arithmetic number, because the mean of its divisors is an integer number (1620633168).

Almost surely, 2^12594978511 is an apocalyptic number.

12594978511 is a deficient number, since it is larger than the sum of its proper divisors (370086833).

12594978511 is a wasteful number, since it uses less digits than its factorization.

12594978511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754141.

The product of its digits is 907200, while the sum is 52.

The spelling of 12594978511 in words is "twelve billion, five hundred ninety-four million, nine hundred seventy-eight thousand, five hundred eleven".