71365250530 has 64 divisors (see below), whose sum is σ = 148365434880. Its totient is φ = 24209025984.

The previous prime is 71365250519. The next prime is 71365250543. The reversal of 71365250530 is 3505256317.

It is a self number, because there is not a number n which added to its sum of digits gives 71365250530.

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 31 ways as a sum of consecutive naturals, for example, 9563941 + ... + 9571399.

It is an arithmetic number, because the mean of its divisors is an integer number (2318209920).

Almost surely, 2^71365250530 is an apocalyptic number.

71365250530 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71365250530 is an abundant number, since it is smaller than the sum of its proper divisors (77000184350).

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

71365250530 is a wasteful number, since it uses less digits than its factorization.

71365250530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8903.

The product of its (nonzero) digits is 94500, while the sum is 37.

The spelling of 71365250530 in words is "seventy-one billion, three hundred sixty-five million, two hundred fifty thousand, five hundred thirty".