12140678578 has 8 divisors (see below), whose sum is σ = 20812591872. Its totient is φ = 5203147956.

The previous prime is 12140678573. The next prime is 12140678597. The reversal of 12140678578 is 87587604121.

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

It is not an unprimeable number, because it can be changed into a prime (12140678573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433595650 + ... + 433595677.

It is an arithmetic number, because the mean of its divisors is an integer number (2601573984).

Almost surely, 2^12140678578 is an apocalyptic number.

12140678578 is a deficient number, since it is larger than the sum of its proper divisors (8671913294).

12140678578 is an equidigital number, since it uses as much as digits as its factorization.

12140678578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867191336.

The product of its (nonzero) digits is 752640, while the sum is 49.

The spelling of 12140678578 in words is "twelve billion, one hundred forty million, six hundred seventy-eight thousand, five hundred seventy-eight".