71968077830 has 64 divisors (see below), whose sum is σ = 148807929600. Its totient is φ = 24784341120.

The previous prime is 71968077809. The next prime is 71968077877. The reversal of 71968077830 is 3877086917.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 11121836 + ... + 11128304.

It is an arithmetic number, because the mean of its divisors is an integer number (2325123900).

Almost surely, 2^71968077830 is an apocalyptic number.

71968077830 is an abundant number, since it is smaller than the sum of its proper divisors (76839851770).

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

71968077830 is a wasteful number, since it uses less digits than its factorization.

71968077830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11829.

The product of its (nonzero) digits is 3556224, while the sum is 56.

The spelling of 71968077830 in words is "seventy-one billion, nine hundred sixty-eight million, seventy-seven thousand, eight hundred thirty".