2051146836 has 36 divisors (see below), whose sum is σ = 5250481600. Its totient is φ = 675060048.

The previous prime is 2051146813. The next prime is 2051146871. The reversal of 2051146836 is 6386411502.

It is a happy number.

2051146836 is a `hidden beast` number, since 20 + 511 + 46 + 83 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2051146836.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 357766 + ... + 363453.

Almost surely, 2^2051146836 is an apocalyptic number.

It is an amenable number.

2051146836 is an abundant number, since it is smaller than the sum of its proper divisors (3199334764).

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

2051146836 is a wasteful number, since it uses less digits than its factorization.

2051146836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721308 (or 721303 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2051146836 is about 45289.5886048880. The cubic root of 2051146836 is about 1270.5709372085.

It can be divided in two parts, 205 and 1146836, that added together give a square (1147041 = 1071²).

The spelling of 2051146836 in words is "two billion, fifty-one million, one hundred forty-six thousand, eight hundred thirty-six".