6744575838 has 128 divisors (see below), whose sum is σ = 18146903040. Its totient is φ = 1613905920.

The previous prime is 6744575819. The next prime is 6744575861. The reversal of 6744575838 is 8385754476.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4786078 + ... + 4787486.

It is an arithmetic number, because the mean of its divisors is an integer number (141772680).

Almost surely, 2^6744575838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6744575838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9073451520).

6744575838 is an abundant number, since it is smaller than the sum of its proper divisors (11402327202).

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

6744575838 is a wasteful number, since it uses less digits than its factorization.

6744575838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242.

The product of its digits is 22579200, while the sum is 57.

The square root of 6744575838 is about 82125.3665927891. The cubic root of 6744575838 is about 1889.3752157862.

The spelling of 6744575838 in words is "six billion, seven hundred forty-four million, five hundred seventy-five thousand, eight hundred thirty-eight".