71572527936 has 672 divisors, whose sum is σ = 264924162048. Its totient is φ = 18654935040.

The previous prime is 71572527931. The next prime is 71572527953. The reversal of 71572527936 is 63972527517.

71572527936 is a `hidden beast` number, since 7 + 15 + 72 + 527 + 9 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71572527931) 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 95 ways as a sum of consecutive naturals, for example, 145768651 + ... + 145769141.

It is an arithmetic number, because the mean of its divisors is an integer number (394232384).

Almost surely, 2^71572527936 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 71572527936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132462081024).

71572527936 is an abundant number, since it is smaller than the sum of its proper divisors (193351634112).

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

71572527936 is a wasteful number, since it uses less digits than its factorization.

71572527936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 619 counting only the distinct ones).

The product of its digits is 5556600, while the sum is 54.

The spelling of 71572527936 in words is "seventy-one billion, five hundred seventy-two million, five hundred twenty-seven thousand, nine hundred thirty-six".