75634149409 has 16 divisors (see below), whose sum is σ = 93712953600. Its totient is φ = 59440766400.

The previous prime is 75634149407. The next prime is 75634149413. The reversal of 75634149409 is 90494143657.

It is a cyclic number.

It is not a de Polignac number, because 75634149409 - 2¹ = 75634149407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75634149407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2775517 + ... + 2802634.

It is an arithmetic number, because the mean of its divisors is an integer number (5857059600).

Almost surely, 2^75634149409 is an apocalyptic number.

It is an amenable number.

75634149409 is a deficient number, since it is larger than the sum of its proper divisors (18078804191).

75634149409 is a wasteful number, since it uses less digits than its factorization.

75634149409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5578320.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 75634149409 in words is "seventy-five billion, six hundred thirty-four million, one hundred forty-nine thousand, four hundred nine".