71797084035856 has 45 divisors (see below), whose sum is σ = 146814917861703. Its totient is φ = 34008840030240.

The previous prime is 71797084035851. The next prime is 71797084035881. The reversal of 71797084035856 is 65853048079717.

The square root of 71797084035856 is 8473316.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71797084035851) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 643916271 + ... + 644027761.

Almost surely, 2^{71797084035856} is an apocalyptic number.

71797084035856 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

71797084035856 is the 8473316-th square number.

It is an amenable number.

71797084035856 is an abundant number, since it is smaller than the sum of its proper divisors (75017833825847).

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

71797084035856 is an frugal number, since it uses more digits than its factorization.

71797084035856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223028 (or 111512 counting only the distinct ones).

The product of its (nonzero) digits is 355622400, while the sum is 70.

The spelling of 71797084035856 in words is "seventy-one trillion, seven hundred ninety-seven billion, eighty-four million, thirty-five thousand, eight hundred fifty-six".