6397419870 has 96 divisors (see below), whose sum is σ = 17422516800. Its totient is φ = 1625597952.

The previous prime is 6397419857. The next prime is 6397419881. The reversal of 6397419870 is 789147936.

It is a happy number.

6397419870 is a `hidden beast` number, since 63 + 97 + 419 + 87 + 0 = 666.

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, 551086 + ... + 562574.

It is an arithmetic number, because the mean of its divisors is an integer number (181484550).

Almost surely, 2^6397419870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6397419870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8711258400).

6397419870 is an abundant number, since it is smaller than the sum of its proper divisors (11025096930).

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

6397419870 is a wasteful number, since it uses less digits than its factorization.

6397419870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11794 (or 11791 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The square root of 6397419870 is about 79983.8725619109. The cubic root of 6397419870 is about 1856.3860019388.

The spelling of 6397419870 in words is "six billion, three hundred ninety-seven million, four hundred nineteen thousand, eight hundred seventy".