71621294899200 has 720 divisors, whose sum is σ = 255368288091840. Its totient is φ = 17652252672000.

The previous prime is 71621294899183. The next prime is 71621294899223. The reversal of 71621294899200 is 299849212617.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 957197790 + ... + 957272610.

Almost surely, 2^{71621294899200} 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 71621294899200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127684144045920).

71621294899200 is an abundant number, since it is smaller than the sum of its proper divisors (183746993192640).

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

71621294899200 is a wasteful number, since it uses less digits than its factorization.

71621294899200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74922 (or 74891 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 60.

The spelling of 71621294899200 in words is "seventy-one trillion, six hundred twenty-one billion, two hundred ninety-four million, eight hundred ninety-nine thousand, two hundred".