71178254828 has 12 divisors (see below), whose sum is σ = 124576131960. Its totient is φ = 35585074272.

The previous prime is 71178254809. The next prime is 71178254831. The reversal of 71178254828 is 82845287117.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 71178254828.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 973601 + ... + 1044152.

It is an arithmetic number, because the mean of its divisors is an integer number (10381344330).

Almost surely, 2^71178254828 is an apocalyptic number.

It is an amenable number.

71178254828 is a deficient number, since it is larger than the sum of its proper divisors (53397877132).

71178254828 is a wasteful number, since it uses less digits than its factorization.

71178254828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026576 (or 2026574 counting only the distinct ones).

The product of its digits is 2007040, while the sum is 53.

The spelling of 71178254828 in words is "seventy-one billion, one hundred seventy-eight million, two hundred fifty-four thousand, eight hundred twenty-eight".