12074780785 has 16 divisors (see below), whose sum is σ = 14839345152. Its totient is φ = 9429448000.

The previous prime is 12074780761. The next prime is 12074780789. The reversal of 12074780785 is 58708747021.

It is not a de Polignac number, because 12074780785 - 2¹⁹ = 12074256497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12074780789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132529 + ... + 204238.

It is an arithmetic number, because the mean of its divisors is an integer number (927459072).

Almost surely, 2^12074780785 is an apocalyptic number.

It is an amenable number.

12074780785 is a deficient number, since it is larger than the sum of its proper divisors (2764564367).

12074780785 is a wasteful number, since it uses less digits than its factorization.

12074780785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336944.

The product of its (nonzero) digits is 878080, while the sum is 49.

The spelling of 12074780785 in words is "twelve billion, seventy-four million, seven hundred eighty thousand, seven hundred eighty-five".