71212673349 has 24 divisors (see below), whose sum is σ = 103634294400. Its totient is φ = 47119227840.

The previous prime is 71212673309. The next prime is 71212673353. The reversal of 71212673349 is 94337621217.

It is not a de Polignac number, because 71212673349 - 2¹⁹ = 71212149061 is a prime.

It is a super-2 number, since 2×71212673349² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71212673309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5509204 + ... + 5522114.

It is an arithmetic number, because the mean of its divisors is an integer number (4318095600).

Almost surely, 2^71212673349 is an apocalyptic number.

It is an amenable number.

71212673349 is a deficient number, since it is larger than the sum of its proper divisors (32421621051).

71212673349 is a wasteful number, since it uses less digits than its factorization.

71212673349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17465 (or 17462 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The spelling of 71212673349 in words is "seventy-one billion, two hundred twelve million, six hundred seventy-three thousand, three hundred forty-nine".