75557440609 has 16 divisors (see below), whose sum is σ = 87845932800. Its totient is φ = 63648910080.

The previous prime is 75557440601. The next prime is 75557440631. The reversal of 75557440609 is 90604475557.

It is not a de Polignac number, because 75557440609 - 2³ = 75557440601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75557440601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119509 + ... + 406690.

It is an arithmetic number, because the mean of its divisors is an integer number (5490370800).

Almost surely, 2^75557440609 is an apocalyptic number.

It is an amenable number.

75557440609 is a deficient number, since it is larger than the sum of its proper divisors (12288492191).

75557440609 is a wasteful number, since it uses less digits than its factorization.

75557440609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526560.

The product of its (nonzero) digits is 5292000, while the sum is 52.

The spelling of 75557440609 in words is "seventy-five billion, five hundred fifty-seven million, four hundred forty thousand, six hundred nine".