2051800680740 has 24 divisors (see below), whose sum is σ = 4309508653632. Its totient is φ = 820581753440.

The previous prime is 2051800680733. The next prime is 2051800680757. The reversal of 2051800680740 is 470860081502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8535926 + ... + 8773005.

It is an arithmetic number, because the mean of its divisors is an integer number (179562860568).

Almost surely, 2^{2051800680740} is an apocalyptic number.

2051800680740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051800680740 is an abundant number, since it is smaller than the sum of its proper divisors (2257707972892).

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

2051800680740 is a wasteful number, since it uses less digits than its factorization.

2051800680740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17314867 (or 17314865 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 2051800680740 in words is "two trillion, fifty-one billion, eight hundred million, six hundred eighty thousand, seven hundred forty".