2128336621260 has 48 divisors (see below), whose sum is σ = 5962677670656. Its totient is φ = 567238800832.

The previous prime is 2128336621223. The next prime is 2128336621277. The reversal of 2128336621260 is 621266338212.

It is a happy 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, 9817872 + ... + 10032311.

It is an arithmetic number, because the mean of its divisors is an integer number (124222451472).

Almost surely, 2^{2128336621260} is an apocalyptic number.

2128336621260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2128336621260 is an abundant number, since it is smaller than the sum of its proper divisors (3834341049396).

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

2128336621260 is a wasteful number, since it uses less digits than its factorization.

2128336621260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19851982 (or 19851980 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 2128336621260 in words is "two trillion, one hundred twenty-eight billion, three hundred thirty-six million, six hundred twenty-one thousand, two hundred sixty".