2128206429552 has 80 divisors (see below), whose sum is σ = 6291447599360. Its totient is φ = 607268192256.

The previous prime is 2128206429541. The next prime is 2128206429599. The reversal of 2128206429552 is 2559246028212.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3859918 + ... + 4376685.

It is an arithmetic number, because the mean of its divisors is an integer number (78643094992).

Almost surely, 2^{2128206429552} is an apocalyptic number.

It is an amenable number.

2128206429552 is an abundant number, since it is smaller than the sum of its proper divisors (4163241169808).

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

2128206429552 is a wasteful number, since it uses less digits than its factorization.

2128206429552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8237390 (or 8237384 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 2128206429552 in words is "two trillion, one hundred twenty-eight billion, two hundred six million, four hundred twenty-nine thousand, five hundred fifty-two".