6612463621 has 8 divisors (see below), whose sum is σ = 6796805400. Its totient is φ = 6428418048.

The previous prime is 6612463607. The next prime is 6612463639. The reversal of 6612463621 is 1263642166.

It can be written as a sum of positive squares in 4 ways, for example, as 501132996 + 6111330625 = 22386^2 + 78175^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6612463621 - 2⁷ = 6612463493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6612463691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28396 + ... + 118453.

It is an arithmetic number, because the mean of its divisors is an integer number (849600675).

Almost surely, 2^6612463621 is an apocalyptic number.

It is an amenable number.

6612463621 is a deficient number, since it is larger than the sum of its proper divisors (184341779).

6612463621 is a wasteful number, since it uses less digits than its factorization.

6612463621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148103.

The product of its digits is 62208, while the sum is 37.

The square root of 6612463621 is about 81317.0561506010. The cubic root of 6612463621 is about 1876.9574694175.

The spelling of 6612463621 in words is "six billion, six hundred twelve million, four hundred sixty-three thousand, six hundred twenty-one".