71684298052 has 6 divisors (see below), whose sum is σ = 125447521598. Its totient is φ = 35842149024.

The previous prime is 71684298031. The next prime is 71684298061. The reversal of 71684298052 is 25089248617.

It can be written as a sum of positive squares in only one way, i.e., 62067749956 + 9616548096 = 249134^2 + 98064^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8960537253 + ... + 8960537260.

Almost surely, 2^71684298052 is an apocalyptic number.

It is an amenable number.

71684298052 is a deficient number, since it is larger than the sum of its proper divisors (53763223546).

71684298052 is a wasteful number, since it uses less digits than its factorization.

71684298052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17921074517 (or 17921074515 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 71684298052 in words is "seventy-one billion, six hundred eighty-four million, two hundred ninety-eight thousand, fifty-two".