2122745652 has 36 divisors (see below), whose sum is σ = 5367922560. Its totient is φ = 707305872.

The previous prime is 2122745641. The next prime is 2122745671. The reversal of 2122745652 is 2565472212.

2122745652 is a `hidden beast` number, since 2 + 1 + 22 + 74 + 565 + 2 = 666.

2122745652 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95773 + ... + 115835.

It is an arithmetic number, because the mean of its divisors is an integer number (149108960).

Almost surely, 2^2122745652 is an apocalyptic number.

It is an amenable number.

2122745652 is an abundant number, since it is smaller than the sum of its proper divisors (3245176908).

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

2122745652 is a wasteful number, since it uses less digits than its factorization.

2122745652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23012 (or 23007 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 2122745652 is about 46073.2639607832. The cubic root of 2122745652 is about 1285.1860020335.

The spelling of 2122745652 in words is "two billion, one hundred twenty-two million, seven hundred forty-five thousand, six hundred fifty-two".