75750393650 has 12 divisors (see below), whose sum is σ = 140895732282. Its totient is φ = 30300157440.

The previous prime is 75750393629. The next prime is 75750393659. The reversal of 75750393650 is 5639305757.

It can be written as a sum of positive squares in 3 ways, for example, as 72278709409 + 3471684241 = 268847^2 + 58921^2 .

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 1515007873 = 75750393650 / (7 + 5 + 7 + 5 + 0 + 3 + 9 + 3 + 6 + 5 + 0).

It is not an unprimeable number, because it can be changed into a prime (75750393659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 757503887 + ... + 757503986.

Almost surely, 2^75750393650 is an apocalyptic number.

75750393650 is a deficient number, since it is larger than the sum of its proper divisors (65145338632).

75750393650 is a wasteful number, since it uses less digits than its factorization.

75750393650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515007885 (or 1515007880 counting only the distinct ones).

The product of its (nonzero) digits is 2976750, while the sum is 50.

The spelling of 75750393650 in words is "seventy-five billion, seven hundred fifty million, three hundred ninety-three thousand, six hundred fifty".