7381375729 has 48 divisors (see below), whose sum is σ = 9487083648. Its totient is φ = 5690539008.

The previous prime is 7381375693. The next prime is 7381375811. The reversal of 7381375729 is 9275731837.

It is not a de Polignac number, because 7381375729 - 2⁷ = 7381375601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7381372729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4138972 + ... + 4140754.

It is an arithmetic number, because the mean of its divisors is an integer number (197647576).

Almost surely, 2^7381375729 is an apocalyptic number.

It is an amenable number.

7381375729 is a deficient number, since it is larger than the sum of its proper divisors (2105707919).

7381375729 is a wasteful number, since it uses less digits than its factorization.

7381375729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974 (or 1967 counting only the distinct ones).

The product of its digits is 2222640, while the sum is 52.

The square root of 7381375729 is about 85914.9330966393. The cubic root of 7381375729 is about 1947.0589659262.

The spelling of 7381375729 in words is "seven billion, three hundred eighty-one million, three hundred seventy-five thousand, seven hundred twenty-nine".