71502386028 has 24 divisors (see below), whose sum is σ = 166956185088. Its totient is φ = 23817373776.

The previous prime is 71502386027. The next prime is 71502386089. The reversal of 71502386028 is 82068320517.

It is a super-2 number, since 2×71502386028² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71502386027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2076576 + ... + 2110727.

It is an arithmetic number, because the mean of its divisors is an integer number (6956507712).

Almost surely, 2^71502386028 is an apocalyptic number.

It is an amenable number.

71502386028 is an abundant number, since it is smaller than the sum of its proper divisors (95453799060).

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

71502386028 is a wasteful number, since it uses less digits than its factorization.

71502386028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4188733 (or 4188731 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 71502386028 in words is "seventy-one billion, five hundred two million, three hundred eighty-six thousand, twenty-eight".