75540047535 has 24 divisors (see below), whose sum is σ = 133082580384. Its totient is φ = 39627564480.

The previous prime is 75540047509. The next prime is 75540047543. The reversal of 75540047535 is 53574004557.

It is a happy number.

75540047535 is a `hidden beast` number, since 7 + 5 + 540 + 0 + 4 + 75 + 35 = 666.

It is not a de Polignac number, because 75540047535 - 2¹⁶ = 75539981999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 13756827 + ... + 13762316.

It is an arithmetic number, because the mean of its divisors is an integer number (5545107516).

Almost surely, 2^75540047535 is an apocalyptic number.

75540047535 is a deficient number, since it is larger than the sum of its proper divisors (57542532849).

75540047535 is a wasteful number, since it uses less digits than its factorization.

75540047535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27519215 (or 27519212 counting only the distinct ones).

The product of its (nonzero) digits is 1470000, while the sum is 45.

The spelling of 75540047535 in words is "seventy-five billion, five hundred forty million, forty-seven thousand, five hundred thirty-five".