6394869474 has 64 divisors (see below), whose sum is σ = 14803845120. Its totient is φ = 1803795840.

The previous prime is 6394869451. The next prime is 6394869487. The reversal of 6394869474 is 4749684936.

It is a happy 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, 4346559 + ... + 4348029.

It is an arithmetic number, because the mean of its divisors is an integer number (231310080).

Almost surely, 2^6394869474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6394869474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7401922560).

6394869474 is an abundant number, since it is smaller than the sum of its proper divisors (8408975646).

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

6394869474 is a wasteful number, since it uses less digits than its factorization.

6394869474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735.

The product of its digits is 31352832, while the sum is 60.

The square root of 6394869474 is about 79967.9277835808. The cubic root of 6394869474 is about 1856.1392801445.

The spelling of 6394869474 in words is "six billion, three hundred ninety-four million, eight hundred sixty-nine thousand, four hundred seventy-four".