12078773990 has 16 divisors (see below), whose sum is σ = 21802361760. Its totient is φ = 4818049920.

The previous prime is 12078773957. The next prime is 12078773999. The reversal of 12078773990 is 9937787021.

It is a super-2 number, since 2×12078773990² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12078773999) 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, 1678691 + ... + 1685870.

It is an arithmetic number, because the mean of its divisors is an integer number (1362647610).

Almost surely, 2^12078773990 is an apocalyptic number.

12078773990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12078773990 is a deficient number, since it is larger than the sum of its proper divisors (9723587770).

12078773990 is a wasteful number, since it uses less digits than its factorization.

12078773990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3364927.

The product of its (nonzero) digits is 1333584, while the sum is 53.

The spelling of 12078773990 in words is "twelve billion, seventy-eight million, seven hundred seventy-three thousand, nine hundred ninety".