12451920388608 has 160 divisors (see below), whose sum is σ = 34050249573120. Its totient is φ = 4042153594880.

The previous prime is 12451920388547. The next prime is 12451920388619. The reversal of 12451920388608 is 80688302915421.

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, 9054703 + ... + 10338833.

It is an arithmetic number, because the mean of its divisors is an integer number (212814059832).

Almost surely, 2^{12451920388608} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12451920388608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17025124786560).

12451920388608 is an abundant number, since it is smaller than the sum of its proper divisors (21598329184512).

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

12451920388608 is a wasteful number, since it uses less digits than its factorization.

12451920388608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284318 (or 1284302 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 57.

The spelling of 12451920388608 in words is "twelve trillion, four hundred fifty-one billion, nine hundred twenty million, three hundred eighty-eight thousand, six hundred eight".