921600720075 has 192 divisors, whose sum is σ = 1885250764800. Its totient is φ = 387952857600.

The previous prime is 921600720067. The next prime is 921600720109. The reversal of 921600720075 is 570027006129.

It is not a de Polignac number, because 921600720075 - 2³ = 921600720067 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 125709160 + ... + 125716490.

It is an arithmetic number, because the mean of its divisors is an integer number (9819014400).

Almost surely, 2^921600720075 is an apocalyptic number.

921600720075 is an abundant number, since it is smaller than the sum of its proper divisors (963650044725).

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

921600720075 is a wasteful number, since it uses less digits than its factorization.

921600720075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7762 (or 7757 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 39.

The spelling of 921600720075 in words is "nine hundred twenty-one billion, six hundred million, seven hundred twenty thousand, seventy-five".