12489754288220 has 144 divisors (see below), whose sum is σ = 31053546768384. Its totient is φ = 4204124284800.

The previous prime is 12489754288217. The next prime is 12489754288301. The reversal of 12489754288220 is 2288245798421.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1893794 + ... + 5344713.

It is an arithmetic number, because the mean of its divisors is an integer number (215649630336).

Almost surely, 2^{12489754288220} is an apocalyptic number.

12489754288220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12489754288220 is an abundant number, since it is smaller than the sum of its proper divisors (18563792480164).

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

12489754288220 is a wasteful number, since it uses less digits than its factorization.

12489754288220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7238592 (or 7238579 counting only the distinct ones).

The product of its (nonzero) digits is 41287680, while the sum is 62.

The spelling of 12489754288220 in words is "twelve trillion, four hundred eighty-nine billion, seven hundred fifty-four million, two hundred eighty-eight thousand, two hundred twenty".