5621038812 has 36 divisors (see below), whose sum is σ = 14956567080. Its totient is φ = 1775064672.

The previous prime is 5621038807. The next prime is 5621038847. The reversal of 5621038812 is 2188301265.

It is a happy number.

5621038812 is a `hidden beast` number, since 56 + 210 + 388 + 12 = 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 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, 4108263 + ... + 4109630.

Almost surely, 2^5621038812 is an apocalyptic number.

It is an amenable number.

5621038812 is an abundant number, since it is smaller than the sum of its proper divisors (9335528268).

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

5621038812 is a wasteful number, since it uses less digits than its factorization.

5621038812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8217922 (or 8217917 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 5621038812 is about 74973.5874291740. The cubic root of 5621038812 is about 1778.0290868612.

The spelling of 5621038812 in words is "five billion, six hundred twenty-one million, thirty-eight thousand, eight hundred twelve".