71473069272 has 256 divisors, whose sum is σ = 211254220800. Its totient is φ = 19916928000.

The previous prime is 71473069259. The next prime is 71473069279. The reversal of 71473069272 is 27296037417.

It is a super-2 number, since 2×71473069272² (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 (71473069279) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46683147 + ... + 46684677.

It is an arithmetic number, because the mean of its divisors is an integer number (825211800).

Almost surely, 2^71473069272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71473069272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105627110400).

71473069272 is an abundant number, since it is smaller than the sum of its proper divisors (139781151528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71473069272 is a wasteful number, since it uses less digits than its factorization.

71473069272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 48.

The spelling of 71473069272 in words is "seventy-one billion, four hundred seventy-three million, sixty-nine thousand, two hundred seventy-two".