71397229481 has 8 divisors (see below), whose sum is σ = 73214300544. Its totient is φ = 69583762080.

The previous prime is 71397229471. The next prime is 71397229517. The reversal of 71397229481 is 18492279317.

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

It is a cyclic number.

It is not a de Polignac number, because 71397229481 - 2³⁰ = 70323487657 is a prime.

It is a super-2 number, since 2×71397229481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71397229471) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 860765 + ... + 940058.

It is an arithmetic number, because the mean of its divisors is an integer number (9151787568).

Almost surely, 2^71397229481 is an apocalyptic number.

It is an amenable number.

71397229481 is a deficient number, since it is larger than the sum of its proper divisors (1817071063).

71397229481 is a wasteful number, since it uses less digits than its factorization.

71397229481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801831.

The product of its digits is 1524096, while the sum is 53.

The spelling of 71397229481 in words is "seventy-one billion, three hundred ninety-seven million, two hundred twenty-nine thousand, four hundred eighty-one".