71212770484 has 6 divisors (see below), whose sum is σ = 124622348354. Its totient is φ = 35606385240.

The previous prime is 71212770451. The next prime is 71212770491. The reversal of 71212770484 is 48407721217.

It can be written as a sum of positive squares in only one way, i.e., 40088048400 + 31124722084 = 200220^2 + 176422^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71212770484.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8901596307 + ... + 8901596314.

Almost surely, 2^71212770484 is an apocalyptic number.

It is an amenable number.

71212770484 is a deficient number, since it is larger than the sum of its proper divisors (53409577870).

71212770484 is a wasteful number, since it uses less digits than its factorization.

71212770484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17803192625 (or 17803192623 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 43.

The spelling of 71212770484 in words is "seventy-one billion, two hundred twelve million, seven hundred seventy thousand, four hundred eighty-four".