75840545446 has 4 divisors (see below), whose sum is σ = 113760818172. Its totient is φ = 37920272722.

The previous prime is 75840545393. The next prime is 75840545447. The reversal of 75840545446 is 64454504857.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 75840545393 and 75840545402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75840545447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18960136360 + ... + 18960136363.

It is an arithmetic number, because the mean of its divisors is an integer number (28440204543).

Almost surely, 2^75840545446 is an apocalyptic number.

75840545446 is a deficient number, since it is larger than the sum of its proper divisors (37920272726).

75840545446 is a wasteful number, since it uses less digits than its factorization.

75840545446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37920272725.

The product of its (nonzero) digits is 10752000, while the sum is 52.

The spelling of 75840545446 in words is "seventy-five billion, eight hundred forty million, five hundred forty-five thousand, four hundred forty-six".