75432440811 has 64 divisors (see below), whose sum is σ = 125633349632. Its totient is φ = 39196265472.

The previous prime is 75432440791. The next prime is 75432440819. The reversal of 75432440811 is 11804423457.

It is not a de Polignac number, because 75432440811 - 2¹⁰ = 75432439787 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 75432440811.

It is not an unprimeable number, because it can be changed into a prime (75432440819) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21780666 + ... + 21784128.

It is an arithmetic number, because the mean of its divisors is an integer number (1963021088).

Almost surely, 2^75432440811 is an apocalyptic number.

75432440811 is a deficient number, since it is larger than the sum of its proper divisors (50200908821).

75432440811 is a wasteful number, since it uses less digits than its factorization.

75432440811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652.

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 75432440811 in words is "seventy-five billion, four hundred thirty-two million, four hundred forty thousand, eight hundred eleven".