12990194758 has 16 divisors (see below), whose sum is σ = 19681890624. Its totient is φ = 6429870720.

The previous prime is 12990194747. The next prime is 12990194761. The reversal of 12990194758 is 85749109921.

It is a junction number, because it is equal to n+sod(n) for n = 12990194699 and 12990194708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8766 + ... + 161422.

It is an arithmetic number, because the mean of its divisors is an integer number (1230118164).

Almost surely, 2^12990194758 is an apocalyptic number.

12990194758 is a deficient number, since it is larger than the sum of its proper divisors (6691695866).

12990194758 is a wasteful number, since it uses less digits than its factorization.

12990194758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153087.

The product of its (nonzero) digits is 1632960, while the sum is 55.

The spelling of 12990194758 in words is "twelve billion, nine hundred ninety million, one hundred ninety-four thousand, seven hundred fifty-eight".