12727069978 has 72 divisors (see below), whose sum is σ = 23120409312. Its totient is φ = 5238783648.

The previous prime is 12727069969. The next prime is 12727070053. The reversal of 12727069978 is 87996072721.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25302075 + ... + 25302577.

It is an arithmetic number, because the mean of its divisors is an integer number (321116796).

Almost surely, 2^12727069978 is an apocalyptic number.

12727069978 is a deficient number, since it is larger than the sum of its proper divisors (10393339334).

12727069978 is a wasteful number, since it uses less digits than its factorization.

12727069978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 58.

The spelling of 12727069978 in words is "twelve billion, seven hundred twenty-seven million, sixty-nine thousand, nine hundred seventy-eight".