75447836650 has 12 divisors (see below), whose sum is σ = 140332976262. Its totient is φ = 30179134640.

The previous prime is 75447836647. The next prime is 75447836669. The reversal of 75447836650 is 5663874457.

It can be written as a sum of positive squares in 3 ways, for example, as 73700847441 + 1746989209 = 271479^2 + 41797^2 .

It is a junction number, because it is equal to n+sod(n) for n = 75447836591 and 75447836600.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 754478317 + ... + 754478416.

Almost surely, 2^75447836650 is an apocalyptic number.

75447836650 is a deficient number, since it is larger than the sum of its proper divisors (64885139612).

75447836650 is a wasteful number, since it uses less digits than its factorization.

75447836650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508956745 (or 1508956740 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 55.

The spelling of 75447836650 in words is "seventy-five billion, four hundred forty-seven million, eight hundred thirty-six thousand, six hundred fifty".