71280218108 has 12 divisors (see below), whose sum is σ = 136080416472. Its totient is φ = 32400099120.

The previous prime is 71280218099. The next prime is 71280218123. The reversal of 71280218108 is 80181208217.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 810002435 + ... + 810002522.

It is an arithmetic number, because the mean of its divisors is an integer number (11340034706).

Almost surely, 2^71280218108 is an apocalyptic number.

It is an amenable number.

71280218108 is a deficient number, since it is larger than the sum of its proper divisors (64800198364).

71280218108 is a wasteful number, since it uses less digits than its factorization.

71280218108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620004972 (or 1620004970 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 38.

The spelling of 71280218108 in words is "seventy-one billion, two hundred eighty million, two hundred eighteen thousand, one hundred eight".