6388856890101 has 40 divisors (see below), whose sum is σ = 10932445181504. Its totient is φ = 3642343873920.

The previous prime is 6388856890027. The next prime is 6388856890127. The reversal of 6388856890101 is 1010986588836.

6388856890101 is a `hidden beast` number, since 6 + 388 + 8 + 5 + 68 + 90 + 101 = 666.

6388856890101 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6388856890101 - 2¹⁵ = 6388856857333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6388856890001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12765835 + ... + 13256856.

Almost surely, 2^{6388856890101} is an apocalyptic number.

It is an amenable number.

6388856890101 is a deficient number, since it is larger than the sum of its proper divisors (4543588291403).

6388856890101 is a wasteful number, since it uses less digits than its factorization.

6388856890101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26023143 (or 26023134 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 63.

The spelling of 6388856890101 in words is "six trillion, three hundred eighty-eight billion, eight hundred fifty-six million, eight hundred ninety thousand, one hundred one".