71408685416 has 32 divisors (see below), whose sum is σ = 140984064000. Its totient is φ = 33814158336.

The previous prime is 71408685409. The next prime is 71408685461. The reversal of 71408685416 is 61458680417.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401945 + ... + 551703.

It is an arithmetic number, because the mean of its divisors is an integer number (4405752000).

Almost surely, 2^71408685416 is an apocalyptic number.

71408685416 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

71408685416 is a deficient number, since it is larger than the sum of its proper divisors (69575378584).

71408685416 is a wasteful number, since it uses less digits than its factorization.

71408685416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152921 (or 152917 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 71408685416 in words is "seventy-one billion, four hundred eight million, six hundred eighty-five thousand, four hundred sixteen".