3989706621054 has 64 divisors (see below), whose sum is σ = 9951677839872. Its totient is φ = 1035941760000.

The previous prime is 3989706621041. The next prime is 3989706621097. The reversal of 3989706621054 is 4501266079893.

3989706621054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52347 + ... + 2825270.

It is an arithmetic number, because the mean of its divisors is an integer number (155494966248).

It is a 1-persistent number, because it is pandigital, but 2⋅3989706621054 = 7979413242108 is not.

Almost surely, 2^{3989706621054} is an apocalyptic number.

3989706621054 is an abundant number, since it is smaller than the sum of its proper divisors (5961971218818).

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

3989706621054 is a wasteful number, since it uses less digits than its factorization.

3989706621054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880641.

The product of its (nonzero) digits is 19595520, while the sum is 60.

The spelling of 3989706621054 in words is "three trillion, nine hundred eighty-nine billion, seven hundred six million, six hundred twenty-one thousand, fifty-four".