6419499020 has 48 divisors (see below), whose sum is σ = 14748804000. Its totient is φ = 2327646720.

The previous prime is 6419498951. The next prime is 6419499043. The reversal of 6419499020 is 209949146.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34976 + ... + 118584.

It is an arithmetic number, because the mean of its divisors is an integer number (307266750).

Almost surely, 2^6419499020 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 6419499020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7374402000).

6419499020 is an abundant number, since it is smaller than the sum of its proper divisors (8329304980).

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

6419499020 is a wasteful number, since it uses less digits than its factorization.

6419499020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83978 (or 83976 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 6419499020 is about 80121.7761909957. The cubic root of 6419499020 is about 1858.5191724615.

The spelling of 6419499020 in words is "six billion, four hundred nineteen million, four hundred ninety-nine thousand, twenty".