13389850665628 has 24 divisors (see below), whose sum is σ = 23465348161920. Its totient is φ = 6685467217920.

The previous prime is 13389850665557. The next prime is 13389850665629. The reversal of 13389850665628 is 82656605898331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13389850665629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31351125 + ... + 31775347.

It is an arithmetic number, because the mean of its divisors is an integer number (977722840080).

Almost surely, 2^{13389850665628} is an apocalyptic number.

It is an amenable number.

13389850665628 is a deficient number, since it is larger than the sum of its proper divisors (10075497496292).

13389850665628 is a wasteful number, since it uses less digits than its factorization.

13389850665628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435357 (or 435355 counting only the distinct ones).

The product of its (nonzero) digits is 447897600, while the sum is 70.

The spelling of 13389850665628 in words is "thirteen trillion, three hundred eighty-nine billion, eight hundred fifty million, six hundred sixty-five thousand, six hundred twenty-eight".