12046235785578 has 72 divisors (see below), whose sum is σ = 28621290630348. Its totient is φ = 3648893520384.

The previous prime is 12046235785541. The next prime is 12046235785583. The reversal of 12046235785578 is 87558753264021.

12046235785578 is a `hidden beast` number, since 1 + 2 + 0 + 4 + 6 + 2 + 3 + 5 + 78 + 557 + 8 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 8673808387689 + 3372427397889 = 2945133^2 + 1836417^2 .

It is a super-2 number, since 2×12046235785578² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23147401 + ... + 23662092.

Almost surely, 2^{12046235785578} is an apocalyptic number.

12046235785578 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12046235785578 is an abundant number, since it is smaller than the sum of its proper divisors (16575054844770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12046235785578 is a wasteful number, since it uses less digits than its factorization.

12046235785578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46809576 (or 46809544 counting only the distinct ones).

The product of its (nonzero) digits is 112896000, while the sum is 63.

The spelling of 12046235785578 in words is "twelve trillion, forty-six billion, two hundred thirty-five million, seven hundred eighty-five thousand, five hundred seventy-eight".