12597743084820 has 48 divisors (see below), whose sum is σ = 35298296147520. Its totient is φ = 3357053821696.

The previous prime is 12597743084783. The next prime is 12597743084827. The reversal of 12597743084820 is 2848034779521.

It is a super-2 number, since 2×12597743084820² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12597743084827) 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, 73173750 + ... + 73345709.

It is an arithmetic number, because the mean of its divisors is an integer number (735381169740).

Almost surely, 2^{12597743084820} is an apocalyptic number.

12597743084820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12597743084820 is an abundant number, since it is smaller than the sum of its proper divisors (22700553062700).

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

12597743084820 is a wasteful number, since it uses less digits than its factorization.

12597743084820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146520904 (or 146520902 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 60.

The spelling of 12597743084820 in words is "twelve trillion, five hundred ninety-seven billion, seven hundred forty-three million, eighty-four thousand, eight hundred twenty".