2164639312428 has 48 divisors (see below), whose sum is σ = 5112515210880. Its totient is φ = 712736406144.

The previous prime is 2164639312417. The next prime is 2164639312453. The reversal of 2164639312428 is 8242139364612.

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, 6017343 + ... + 6366921.

It is an arithmetic number, because the mean of its divisors is an integer number (106510733560).

Almost surely, 2^{2164639312428} is an apocalyptic number.

It is an amenable number.

2164639312428 is an abundant number, since it is smaller than the sum of its proper divisors (2947875898452).

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

2164639312428 is a wasteful number, since it uses less digits than its factorization.

2164639312428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355886 (or 355884 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 51.

The spelling of 2164639312428 in words is "two trillion, one hundred sixty-four billion, six hundred thirty-nine million, three hundred twelve thousand, four hundred twenty-eight".