6744391078 has 4 divisors (see below), whose sum is σ = 10116586620. Its totient is φ = 3372195538.

The previous prime is 6744391057. The next prime is 6744391099. The reversal of 6744391078 is 8701934476.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6744391057) and next prime (6744391099).

It is a super-2 number, since 2×6744391078² = 90973622026012004168, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1686097768 + ... + 1686097771.

It is an arithmetic number, because the mean of its divisors is an integer number (2529146655).

Almost surely, 2^6744391078 is an apocalyptic number.

6744391078 is a deficient number, since it is larger than the sum of its proper divisors (3372195542).

6744391078 is a wasteful number, since it uses less digits than its factorization.

6744391078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372195541.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The square root of 6744391078 is about 82124.2417194826. The cubic root of 6744391078 is about 1889.3579631988.

The spelling of 6744391078 in words is "six billion, seven hundred forty-four million, three hundred ninety-one thousand, seventy-eight".