71499789504 has 896 divisors, whose sum is σ = 264293299200. Its totient is φ = 18632540160.

The previous prime is 71499789457. The next prime is 71499789509. The reversal of 71499789504 is 40598799417.

71499789504 is a `hidden beast` number, since 7 + 1 + 49 + 9 + 7 + 89 + 504 = 666.

It is a super-2 number, since 2×71499789504² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71499789509) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 455412594 + ... + 455412750.

It is an arithmetic number, because the mean of its divisors is an integer number (294970200).

Almost surely, 2^71499789504 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 71499789504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132146649600).

71499789504 is an abundant number, since it is smaller than the sum of its proper divisors (192793509696).

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

71499789504 is a wasteful number, since it uses less digits than its factorization.

71499789504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 63.

The spelling of 71499789504 in words is "seventy-one billion, four hundred ninety-nine million, seven hundred eighty-nine thousand, five hundred four".