2051601888 has 192 divisors, whose sum is σ = 6657251328. Its totient is φ = 539811840.

The previous prime is 2051601887. The next prime is 2051601889. The reversal of 2051601888 is 8881061502.

2051601888 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2051601887) and next prime (2051601889).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051601887) 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, 535018 + ... + 538838.

It is an arithmetic number, because the mean of its divisors is an integer number (34673184).

Almost surely, 2^2051601888 is an apocalyptic number.

2051601888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2051601888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3328625664).

2051601888 is an abundant number, since it is smaller than the sum of its proper divisors (4605649440).

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

2051601888 is a wasteful number, since it uses less digits than its factorization.

2051601888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3905 (or 3897 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 39.

The square root of 2051601888 is about 45294.6121299211. The cubic root of 2051601888 is about 1270.6648900296.

The spelling of 2051601888 in words is "two billion, fifty-one million, six hundred one thousand, eight hundred eighty-eight".