71214793321 has 27 divisors (see below), whose sum is σ = 84244652919. Its totient is φ = 60024511008.

The previous prime is 71214793297. The next prime is 71214793337. The reversal of 71214793321 is 12339741217.

The square root of 71214793321 is 266861.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 11737338921 + 59477454400 = 108339^2 + 243880^2 .

It is not a de Polignac number, because 71214793321 - 2¹³ = 71214785129 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (71214793621) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 125157525 + ... + 125158093.

Almost surely, 2^71214793321 is an apocalyptic number.

71214793321 is the 266861-st square number.

71214793321 is the 133431-st centered octagonal number.

It is an amenable number.

71214793321 is a deficient number, since it is larger than the sum of its proper divisors (13029859598).

71214793321 is an frugal number, since it uses more digits than its factorization.

71214793321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 643 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The spelling of 71214793321 in words is "seventy-one billion, two hundred fourteen million, seven hundred ninety-three thousand, three hundred twenty-one".