6619374432 has 288 divisors, whose sum is σ = 22421992320. Its totient is φ = 1899832320.

The previous prime is 6619374409. The next prime is 6619374449. The reversal of 6619374432 is 2344739166.

6619374432 is a `hidden beast` number, since 6 + 61 + 93 + 74 + 432 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×6619374432² = 87632235742030645248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1623148 + ... + 1627220.

It is an arithmetic number, because the mean of its divisors is an integer number (77854140).

Almost surely, 2^6619374432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6619374432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11210996160).

6619374432 is an abundant number, since it is smaller than the sum of its proper divisors (15802617888).

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

6619374432 is a wasteful number, since it uses less digits than its factorization.

6619374432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128 (or 4108 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The square root of 6619374432 is about 81359.5380517859. The cubic root of 6619374432 is about 1877.6111230249.

It can be divided in two parts, 66193 and 74432, that added together give a square (140625 = 375²).

The spelling of 6619374432 in words is "six billion, six hundred nineteen million, three hundred seventy-four thousand, four hundred thirty-two".