71063788779 has 16 divisors (see below), whose sum is σ = 105407953440. Its totient is φ = 47318139360.

The previous prime is 71063788727. The next prime is 71063788787. The reversal of 71063788779 is 97788736017.

It is not a de Polignac number, because 71063788779 - 2¹⁵ = 71063756011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71063786779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1580752 + ... + 1625085.

It is an arithmetic number, because the mean of its divisors is an integer number (6587997090).

Almost surely, 2^71063788779 is an apocalyptic number.

71063788779 is a deficient number, since it is larger than the sum of its proper divisors (34344164661).

71063788779 is a wasteful number, since it uses less digits than its factorization.

71063788779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3206667 (or 3206661 counting only the distinct ones).

The product of its (nonzero) digits is 24893568, while the sum is 63.

The spelling of 71063788779 in words is "seventy-one billion, sixty-three million, seven hundred eighty-eight thousand, seven hundred seventy-nine".