4526521812 has 24 divisors (see below), whose sum is σ = 11735427200. Its totient is φ = 1508840568.

The previous prime is 4526521801. The next prime is 4526521889. The reversal of 4526521812 is 2181256254.

4526521812 is a `hidden beast` number, since 4 + 52 + 6 + 521 + 81 + 2 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 20956012 + ... + 20956227.

Almost surely, 2^4526521812 is an apocalyptic number.

It is an amenable number.

4526521812 is an abundant number, since it is smaller than the sum of its proper divisors (7208905388).

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

4526521812 is a wasteful number, since it uses less digits than its factorization.

4526521812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41912252 (or 41912244 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 4526521812 is about 67279.4308239896. The cubic root of 4526521812 is about 1654.2007211370.

The spelling of 4526521812 in words is "four billion, five hundred twenty-six million, five hundred twenty-one thousand, eight hundred twelve".