2051880194208 has 192 divisors, whose sum is σ = 6168750618240. Its totient is φ = 591952084992.

The previous prime is 2051880194207. The next prime is 2051880194239. The reversal of 2051880194208 is 8024910881502.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (2051880194207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1854016 + ... + 2746112.

It is an arithmetic number, because the mean of its divisors is an integer number (32128909470).

Almost surely, 2^{2051880194208} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2051880194208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3084375309120).

2051880194208 is an abundant number, since it is smaller than the sum of its proper divisors (4116870424032).

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

2051880194208 is a wasteful number, since it uses less digits than its factorization.

2051880194208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892239 (or 892231 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 48.

The spelling of 2051880194208 in words is "two trillion, fifty-one billion, eight hundred eighty million, one hundred ninety-four thousand, two hundred eight".