6745278433725 has 192 divisors, whose sum is σ = 13499860953600. Its totient is φ = 3282183659520.

The previous prime is 6745278433709. The next prime is 6745278433753. The reversal of 6745278433725 is 5273348725476.

6745278433725 is a `hidden beast` number, since 6 + 7 + 4 + 5 + 278 + 4 + 337 + 25 = 666.

It is not a de Polignac number, because 6745278433725 - 2⁴ = 6745278433709 is a prime.

It is a super-2 number, since 2×6745278433725² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 700512211 + ... + 700521839.

It is an arithmetic number, because the mean of its divisors is an integer number (70311775800).

Almost surely, 2^{6745278433725} is an apocalyptic number.

6745278433725 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6745278433725 is an abundant number, since it is smaller than the sum of its proper divisors (6754582519875).

6745278433725 is a wasteful number, since it uses less digits than its factorization.

6745278433725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10581 (or 10570 counting only the distinct ones).

The product of its digits is 237081600, while the sum is 63.

The spelling of 6745278433725 in words is "six trillion, seven hundred forty-five billion, two hundred seventy-eight million, four hundred thirty-three thousand, seven hundred twenty-five".