2051684564280 has 128 divisors (see below), whose sum is σ = 6977388902400. Its totient is φ = 478449510912.

The previous prime is 2051684564239. The next prime is 2051684564309. The reversal of 2051684564280 is 824654861502.

It is a happy number.

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, 34580424 + ... + 34639703.

It is an arithmetic number, because the mean of its divisors is an integer number (54510850800).

Almost surely, 2^{2051684564280} is an apocalyptic number.

2051684564280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051684564280 is an abundant number, since it is smaller than the sum of its proper divisors (4925704338120).

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

2051684564280 is a wasteful number, since it uses less digits than its factorization.

2051684564280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69220173 (or 69220169 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 51.

The spelling of 2051684564280 in words is "two trillion, fifty-one billion, six hundred eighty-four million, five hundred sixty-four thousand, two hundred eighty".