75620421609 has 8 divisors (see below), whose sum is σ = 104079720192. Its totient is φ = 48787368720.

The previous prime is 75620421601. The next prime is 75620421619. The reversal of 75620421609 is 90612402657.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75620421609 - 2³ = 75620421601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75620421601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406561314 + ... + 406561499.

It is an arithmetic number, because the mean of its divisors is an integer number (13009965024).

Almost surely, 2^75620421609 is an apocalyptic number.

It is an amenable number.

75620421609 is a deficient number, since it is larger than the sum of its proper divisors (28459298583).

75620421609 is a wasteful number, since it uses less digits than its factorization.

75620421609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813122847.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 75620421609 in words is "seventy-five billion, six hundred twenty million, four hundred twenty-one thousand, six hundred nine".