75040603450 has 12 divisors (see below), whose sum is σ = 139575522510. Its totient is φ = 30016241360.

The previous prime is 75040603381. The next prime is 75040603487. The reversal of 75040603450 is 5430604057.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 58036182649 + 17004420801 = 240907^2 + 130401^2 .

It is a super-2 number, since 2×75040603450² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 750405985 + ... + 750406084.

Almost surely, 2^75040603450 is an apocalyptic number.

75040603450 is a deficient number, since it is larger than the sum of its proper divisors (64534919060).

75040603450 is a wasteful number, since it uses less digits than its factorization.

75040603450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500812081 (or 1500812076 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 34.

The spelling of 75040603450 in words is "seventy-five billion, forty million, six hundred three thousand, four hundred fifty".