6619881472 has 112 divisors (see below), whose sum is σ = 13730264640. Its totient is φ = 3189768192.

The previous prime is 6619881469. The next prime is 6619881487. The reversal of 6619881472 is 2741889166.

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, 34299808 + ... + 34300000.

Almost surely, 2^6619881472 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 6619881472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6865132320).

6619881472 is an abundant number, since it is smaller than the sum of its proper divisors (7110383168).

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

6619881472 is an equidigital number, since it uses as much as digits as its factorization.

6619881472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 327 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 52.

The square root of 6619881472 is about 81362.6540373407. The cubic root of 6619881472 is about 1877.6590630856.

The spelling of 6619881472 in words is "six billion, six hundred nineteen million, eight hundred eighty-one thousand, four hundred seventy-two".