71449839197 has 8 divisors (see below), whose sum is σ = 77960918880. Its totient is φ = 64941366160.

The previous prime is 71449839127. The next prime is 71449839239. The reversal of 71449839197 is 79193894417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71449839197 - 2¹⁴ = 71449822813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71449839127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594122 + ... + 704187.

It is an arithmetic number, because the mean of its divisors is an integer number (9745114860).

Almost surely, 2^71449839197 is an apocalyptic number.

It is an amenable number.

71449839197 is a deficient number, since it is larger than the sum of its proper divisors (6511079683).

71449839197 is a wasteful number, since it uses less digits than its factorization.

71449839197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303323.

The product of its digits is 13716864, while the sum is 62.

The spelling of 71449839197 in words is "seventy-one billion, four hundred forty-nine million, eight hundred thirty-nine thousand, one hundred ninety-seven".