12344506722840 has 64 divisors (see below), whose sum is σ = 37400188721760. Its totient is φ = 3259275699200.

The previous prime is 12344506722839. The next prime is 12344506722853. The reversal of 12344506722840 is 4822760544321.

It is a self number, because there is not a number n which added to its sum of digits gives 12344506722840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509249709 + ... + 509273948.

Almost surely, 2^{12344506722840} is an apocalyptic number.

12344506722840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12344506722840 is an abundant number, since it is smaller than the sum of its proper divisors (25055681998920).

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

12344506722840 is a wasteful number, since it uses less digits than its factorization.

12344506722840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018523772 (or 1018523768 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 48.

The spelling of 12344506722840 in words is "twelve trillion, three hundred forty-four billion, five hundred six million, seven hundred twenty-two thousand, eight hundred forty".