71678046776 has 32 divisors (see below), whose sum is σ = 153678044640. Its totient is φ = 30702716928.

The previous prime is 71678046749. The next prime is 71678046779. The reversal of 71678046776 is 67764087617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71678046779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236801 + ... + 446576.

It is an arithmetic number, because the mean of its divisors is an integer number (4802438895).

Almost surely, 2^71678046776 is an apocalyptic number.

It is an amenable number.

71678046776 is an abundant number, since it is smaller than the sum of its proper divisors (81999997864).

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

71678046776 is a wasteful number, since it uses less digits than its factorization.

71678046776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685263 (or 685259 counting only the distinct ones).

The product of its (nonzero) digits is 16595712, while the sum is 59.

The spelling of 71678046776 in words is "seventy-one billion, six hundred seventy-eight million, forty-six thousand, seven hundred seventy-six".