12615800776 has 32 divisors (see below), whose sum is σ = 25051321440. Its totient is φ = 5935603968.

The previous prime is 12615800773. The next prime is 12615800789. The reversal of 12615800776 is 67700851621.

It is not an unprimeable number, because it can be changed into a prime (12615800773) by changing a digit.

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, 1142755 + ... + 1153741.

It is an arithmetic number, because the mean of its divisors is an integer number (782853795).

Almost surely, 2^12615800776 is an apocalyptic number.

It is an amenable number.

12615800776 is a deficient number, since it is larger than the sum of its proper divisors (12435520664).

12615800776 is a wasteful number, since it uses less digits than its factorization.

12615800776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19453 (or 19449 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The spelling of 12615800776 in words is "twelve billion, six hundred fifteen million, eight hundred thousand, seven hundred seventy-six".