12370345578 has 12 divisors (see below), whose sum is σ = 26802415458. Its totient is φ = 4123448520.

The previous prime is 12370345577. The next prime is 12370345619. The reversal of 12370345578 is 87554307321.

12370345578 is a `hidden beast` number, since 1 + 2 + 3 + 70 + 3 + 4 + 5 + 578 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12346987689 + 23357889 = 111117^2 + 4833^2 .

It is not an unprimeable number, because it can be changed into a prime (12370345571) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 343620693 + ... + 343620728.

Almost surely, 2^12370345578 is an apocalyptic number.

12370345578 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12370345578 is an abundant number, since it is smaller than the sum of its proper divisors (14432069880).

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

12370345578 is a wasteful number, since it uses less digits than its factorization.

12370345578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687241429 (or 687241426 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 12370345578 in words is "twelve billion, three hundred seventy million, three hundred forty-five thousand, five hundred seventy-eight".