71311700530 has 32 divisors (see below), whose sum is σ = 148707932544. Its totient is φ = 24114796416.

The previous prime is 71311700519. The next prime is 71311700567. The reversal of 71311700530 is 3500711317.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6972552 + ... + 6982771.

It is an arithmetic number, because the mean of its divisors is an integer number (4647122892).

Almost surely, 2^71311700530 is an apocalyptic number.

71311700530 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71311700530 is an abundant number, since it is smaller than the sum of its proper divisors (77396232014).

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

71311700530 is a wasteful number, since it uses less digits than its factorization.

71311700530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13955410.

The product of its (nonzero) digits is 2205, while the sum is 28.

The spelling of 71311700530 in words is "seventy-one billion, three hundred eleven million, seven hundred thousand, five hundred thirty".