73663722880 has 256 divisors, whose sum is σ = 201301977600. Its totient is φ = 25515212800.

The previous prime is 73663722823. The next prime is 73663722911. The reversal of 73663722880 is 8822736637.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45498711 + ... + 45500329.

It is an arithmetic number, because the mean of its divisors is an integer number (786335850).

Almost surely, 2^73663722880 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 73663722880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100650988800).

73663722880 is an abundant number, since it is smaller than the sum of its proper divisors (127638254720).

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

73663722880 is a wasteful number, since it uses less digits than its factorization.

73663722880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953 (or 1941 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 73663722880 in words is "seventy-three billion, six hundred sixty-three million, seven hundred twenty-two thousand, eight hundred eighty".