71199764858 has 32 divisors (see below), whose sum is σ = 109755813888. Its totient is φ = 34624384000.

The previous prime is 71199764849. The next prime is 71199764891. The reversal of 71199764858 is 85846799117.

It is a junction number, because it is equal to n+sod(n) for n = 71199764794 and 71199764803.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28743116 + ... + 28745592.

It is an arithmetic number, because the mean of its divisors is an integer number (3429869184).

Almost surely, 2^71199764858 is an apocalyptic number.

71199764858 is a deficient number, since it is larger than the sum of its proper divisors (38556049030).

71199764858 is a wasteful number, since it uses less digits than its factorization.

71199764858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4318.

The product of its digits is 30481920, while the sum is 65.

The spelling of 71199764858 in words is "seventy-one billion, one hundred ninety-nine million, seven hundred sixty-four thousand, eight hundred fifty-eight".