12516977078 has 8 divisors (see below), whose sum is σ = 18776046240. Its totient is φ = 6258295000.

The previous prime is 12516977059. The next prime is 12516977093. The reversal of 12516977078 is 87077961521.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5828 + ... + 158328.

It is an arithmetic number, because the mean of its divisors is an integer number (2347005780).

Almost surely, 2^12516977078 is an apocalyptic number.

12516977078 is a deficient number, since it is larger than the sum of its proper divisors (6259069162).

12516977078 is a wasteful number, since it uses less digits than its factorization.

12516977078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193542.

The product of its (nonzero) digits is 1481760, while the sum is 53.

The spelling of 12516977078 in words is "twelve billion, five hundred sixteen million, nine hundred seventy-seven thousand, seventy-eight".