2051153886 has 16 divisors (see below), whose sum is σ = 4134610944. Its totient is φ = 678334104.

The previous prime is 2051153831. The next prime is 2051153893. The reversal of 2051153886 is 6883511502.

It is a congruent number.

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, 1345140 + ... + 1346663.

It is an arithmetic number, because the mean of its divisors is an integer number (258413184).

Almost surely, 2^2051153886 is an apocalyptic number.

2051153886 is an abundant number, since it is smaller than the sum of its proper divisors (2083457058).

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

2051153886 is a wasteful number, since it uses less digits than its factorization.

2051153886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691935.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 2051153886 is about 45289.6664372790. Note that the first 3 decimals coincide. The cubic root of 2051153886 is about 1270.5723929006.

The spelling of 2051153886 in words is "two billion, fifty-one million, one hundred fifty-three thousand, eight hundred eighty-six".