2123504064 has 84 divisors (see below), whose sum is σ = 6639991800. Its totient is φ = 643484160.

The previous prime is 2123504041. The next prime is 2123504069. The reversal of 2123504064 is 4604053212.

2123504064 is a `hidden beast` number, since 21 + 235 + 0 + 406 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123504069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161239 + ... + 173910.

Almost surely, 2^2123504064 is an apocalyptic number.

2123504064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2123504064 is an abundant number, since it is smaller than the sum of its proper divisors (4516487736).

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

2123504064 is a wasteful number, since it uses less digits than its factorization.

2123504064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335178 (or 335165 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2123504064 is about 46081.4937257897. The cubic root of 2123504064 is about 1285.3390403761.

Adding to 2123504064 its reverse (4604053212), we get a palindrome (6727557276).

The spelling of 2123504064 in words is "two billion, one hundred twenty-three million, five hundred four thousand, sixty-four".