6419476776 has 64 divisors (see below), whose sum is σ = 16730611200. Its totient is φ = 2050272000.

The previous prime is 6419476771. The next prime is 6419476783. The reversal of 6419476776 is 6776749146.

It is not an unprimeable number, because it can be changed into a prime (6419476771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32430 + ... + 117858.

It is an arithmetic number, because the mean of its divisors is an integer number (261415800).

Almost surely, 2^6419476776 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 6419476776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8365305600).

6419476776 is an abundant number, since it is smaller than the sum of its proper divisors (10311134424).

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

6419476776 is a wasteful number, since it uses less digits than its factorization.

6419476776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85570 (or 85566 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 57.

The square root of 6419476776 is about 80121.6373771780. The cubic root of 6419476776 is about 1858.5170258273.

The spelling of 6419476776 in words is "six billion, four hundred nineteen million, four hundred seventy-six thousand, seven hundred seventy-six".