75663085444 has 24 divisors (see below), whose sum is σ = 140215477248. Its totient is φ = 35602035840.

The previous prime is 75663085429. The next prime is 75663085453. The reversal of 75663085444 is 44458036657.

It is a junction number, because it is equal to n+sod(n) for n = 75663085391 and 75663085400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573397 + ... + 692899.

It is an arithmetic number, because the mean of its divisors is an integer number (5842311552).

Almost surely, 2^75663085444 is an apocalyptic number.

It is an amenable number.

75663085444 is a deficient number, since it is larger than the sum of its proper divisors (64552391804).

75663085444 is a wasteful number, since it uses less digits than its factorization.

75663085444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128835 (or 128833 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 52.

The spelling of 75663085444 in words is "seventy-five billion, six hundred sixty-three million, eighty-five thousand, four hundred forty-four".