71784199952 has 20 divisors (see below), whose sum is σ = 140143585296. Its totient is φ = 35618113440.

The previous prime is 71784199919. The next prime is 71784200009. The reversal of 71784199952 is 25999148717.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17121998 + ... + 17126189.

Almost surely, 2^71784199952 is an apocalyptic number.

It is an amenable number.

71784199952 is a deficient number, since it is larger than the sum of its proper divisors (68359385344).

71784199952 is a wasteful number, since it uses less digits than its factorization.

71784199952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34248326 (or 34248320 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 62.

The spelling of 71784199952 in words is "seventy-one billion, seven hundred eighty-four million, one hundred ninety-nine thousand, nine hundred fifty-two".