12562382640 has 80 divisors (see below), whose sum is σ = 39321554688. Its totient is φ = 3317438208.

The previous prime is 12562382621. The next prime is 12562382641. The reversal of 12562382640 is 4628326521.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (12562382641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229374 + ... + 278813.

Almost surely, 2^12562382640 is an apocalyptic number.

12562382640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12562382640 is an abundant number, since it is smaller than the sum of its proper divisors (26759172048).

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

12562382640 is a wasteful number, since it uses less digits than its factorization.

12562382640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508306 (or 508300 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 12562382640 in words is "twelve billion, five hundred sixty-two million, three hundred eighty-two thousand, six hundred forty".