12578680490 has 16 divisors (see below), whose sum is σ = 22756560552. Its totient is φ = 5005930944.

The previous prime is 12578680489. The next prime is 12578680529. The reversal of 12578680490 is 9408687521.

It can be written as a sum of positive squares in 4 ways, for example, as 10041442849 + 2537237641 = 100207^2 + 50371^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3190589 + ... + 3194528.

Almost surely, 2^12578680490 is an apocalyptic number.

12578680490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12578680490 is a deficient number, since it is larger than the sum of its proper divisors (10177880062).

12578680490 is a wasteful number, since it uses less digits than its factorization.

12578680490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6385321.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 12578680490 in words is "twelve billion, five hundred seventy-eight million, six hundred eighty thousand, four hundred ninety".