71709000650 has 48 divisors (see below), whose sum is σ = 152461896576. Its totient is φ = 24581257920.

The previous prime is 71709000647. The next prime is 71709000661. The reversal of 71709000650 is 5600090717.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 71709000650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2170052 + ... + 2202848.

It is an arithmetic number, because the mean of its divisors is an integer number (3176289512).

Almost surely, 2^71709000650 is an apocalyptic number.

71709000650 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71709000650 is an abundant number, since it is smaller than the sum of its proper divisors (80752895926).

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

71709000650 is a wasteful number, since it uses less digits than its factorization.

71709000650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39063 (or 39058 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 35.

The spelling of 71709000650 in words is "seventy-one billion, seven hundred nine million, six hundred fifty", and thus it is an aban number.