71969221471 has 8 divisors (see below), whose sum is σ = 82479651840. Its totient is φ = 61516069368.

The previous prime is 71969221463. The next prime is 71969221481. The reversal of 71969221471 is 17412296917.

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 71969221471 - 2³ = 71969221463 is a prime.

It is a super-3 number, since 3×71969221471³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71969221411) 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, 14316871 + ... + 14321896.

It is an arithmetic number, because the mean of its divisors is an integer number (10309956480).

Almost surely, 2^71969221471 is an apocalyptic number.

71969221471 is a deficient number, since it is larger than the sum of its proper divisors (10510430369).

71969221471 is a wasteful number, since it uses less digits than its factorization.

71969221471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28639133.

The product of its digits is 381024, while the sum is 49.

The spelling of 71969221471 in words is "seventy-one billion, nine hundred sixty-nine million, two hundred twenty-one thousand, four hundred seventy-one".