13890666602428 has 384 divisors, whose sum is σ = 32867429253120. Its totient is φ = 4979411297280.

The previous prime is 13890666602413. The next prime is 13890666602443. The reversal of 13890666602428 is 82420666609831.

It is an interprime number because it is at equal distance from previous prime (13890666602413) and next prime (13890666602443).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6733235325 + ... + 6733237387.

It is an arithmetic number, because the mean of its divisors is an integer number (85592263680).

Almost surely, 2^{13890666602428} 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 13890666602428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16433714626560).

13890666602428 is an abundant number, since it is smaller than the sum of its proper divisors (18976762650692).

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

13890666602428 is a wasteful number, since it uses less digits than its factorization.

13890666602428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577 (or 2575 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 61.

The spelling of 13890666602428 in words is "thirteen trillion, eight hundred ninety billion, six hundred sixty-six million, six hundred two thousand, four hundred twenty-eight".