6438146874 has 16 divisors (see below), whose sum is σ = 13633723008. Its totient is φ = 2019810752.

The previous prime is 6438146873. The next prime is 6438146933. The reversal of 6438146874 is 4786418346.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (6438146873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31559442 + ... + 31559645.

It is an arithmetic number, because the mean of its divisors is an integer number (852107688).

Almost surely, 2^6438146874 is an apocalyptic number.

6438146874 is an abundant number, since it is smaller than the sum of its proper divisors (7195576134).

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

6438146874 is a wasteful number, since it uses less digits than its factorization.

6438146874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63119109.

The product of its digits is 3096576, while the sum is 51.

The square root of 6438146874 is about 80238.0637478248. The cubic root of 6438146874 is about 1860.3170225036.

The spelling of 6438146874 in words is "six billion, four hundred thirty-eight million, one hundred forty-six thousand, eight hundred seventy-four".