12542016774 has 192 divisors, whose sum is σ = 31531852800. Its totient is φ = 3305981952.

The previous prime is 12542016769. The next prime is 12542016829. The reversal of 12542016774 is 47761024521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 42805372 + ... + 42805664.

It is an arithmetic number, because the mean of its divisors is an integer number (164228400).

Almost surely, 2^12542016774 is an apocalyptic number.

12542016774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12542016774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15765926400).

12542016774 is an abundant number, since it is smaller than the sum of its proper divisors (18989836026).

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

12542016774 is a wasteful number, since it uses less digits than its factorization.

12542016774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The spelling of 12542016774 in words is "twelve billion, five hundred forty-two million, sixteen thousand, seven hundred seventy-four".