12542022089440 has 96 divisors (see below), whose sum is σ = 31222971400320. Its totient is φ = 4747746415104.

The previous prime is 12542022089419. The next prime is 12542022089461. The reversal of 12542022089440 is 4498022024521.

It is an interprime number because it is at equal distance from previous prime (12542022089419) and next prime (12542022089461).

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, 700599 + ... + 5057161.

It is an arithmetic number, because the mean of its divisors is an integer number (325239285420).

Almost surely, 2^{12542022089440} is an apocalyptic number.

12542022089440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12542022089440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15611485700160).

12542022089440 is an abundant number, since it is smaller than the sum of its proper divisors (18680949310880).

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

12542022089440 is a wasteful number, since it uses less digits than its factorization.

12542022089440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4357544 (or 4357536 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 43.

The spelling of 12542022089440 in words is "twelve trillion, five hundred forty-two billion, twenty-two million, eighty-nine thousand, four hundred forty".