6619142880 has 192 divisors, whose sum is σ = 26476692480. Its totient is φ = 1512940032.

The previous prime is 6619142821. The next prime is 6619142921. The reversal of 6619142880 is 882419166.

6619142880 is a `hidden beast` number, since 6 + 61 + 91 + 428 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79204 + ... + 139683.

It is an arithmetic number, because the mean of its divisors is an integer number (137899440).

Almost surely, 2^6619142880 is an apocalyptic number.

6619142880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6619142880 is an abundant number, since it is smaller than the sum of its proper divisors (19857549600).

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

6619142880 is a wasteful number, since it uses less digits than its factorization.

6619142880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218918 (or 218904 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 6619142880 is about 81358.1150224119. The cubic root of 6619142880 is about 1877.5892292299.

The spelling of 6619142880 in words is "six billion, six hundred nineteen million, one hundred forty-two thousand, eight hundred eighty".