2129128506032 has 80 divisors (see below), whose sum is σ = 4811183350272. Its totient is φ = 902013711360.

The previous prime is 2129128506023. The next prime is 2129128506101. The reversal of 2129128506032 is 2306058219212.

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, 3146228 + ... + 3762579.

Almost surely, 2^{2129128506032} is an apocalyptic number.

2129128506032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2129128506032 is an abundant number, since it is smaller than the sum of its proper divisors (2682054844240).

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

2129128506032 is a wasteful number, since it uses less digits than its factorization.

2129128506032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6908946 (or 6908940 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 2129128506032 in words is "two trillion, one hundred twenty-nine billion, one hundred twenty-eight million, five hundred six thousand, thirty-two".