71504039325 has 24 divisors (see below), whose sum is σ = 123360015168. Its totient is φ = 36477422080.

The previous prime is 71504039293. The next prime is 71504039339. The reversal of 71504039325 is 52393040517.

It is a happy number.

It is not a de Polignac number, because 71504039325 - 2⁵ = 71504039293 is a prime.

It is a super-2 number, since 2×71504039325² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20724084 + ... + 20727533.

It is an arithmetic number, because the mean of its divisors is an integer number (5140000632).

Almost surely, 2^71504039325 is an apocalyptic number.

71504039325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

71504039325 is a deficient number, since it is larger than the sum of its proper divisors (51855975843).

71504039325 is a wasteful number, since it uses less digits than its factorization.

71504039325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41451653 (or 41451648 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 39.

The spelling of 71504039325 in words is "seventy-one billion, five hundred four million, thirty-nine thousand, three hundred twenty-five".