71572227480 has 256 divisors, whose sum is σ = 258657840000. Its totient is φ = 17499027456.

The previous prime is 71572227469. The next prime is 71572227481. The reversal of 71572227480 is 8472227517.

71572227480 is a `hidden beast` number, since 7 + 1 + 572 + 2 + 2 + 74 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71572227481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2074854 + ... + 2109066.

Almost surely, 2^71572227480 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 71572227480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129328920000).

71572227480 is an abundant number, since it is smaller than the sum of its proper divisors (187085612520).

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

71572227480 is a wasteful number, since it uses less digits than its factorization.

71572227480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34395 (or 34385 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 45.

The spelling of 71572227480 in words is "seventy-one billion, five hundred seventy-two million, two hundred twenty-seven thousand, four hundred eighty".