75666769450 has 96 divisors (see below), whose sum is σ = 149457934080. Its totient is φ = 28421280000.

The previous prime is 75666769441. The next prime is 75666769457. The reversal of 75666769450 is 5496766657.

It is not an unprimeable number, because it can be changed into a prime (75666769457) 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 in 47 ways as a sum of consecutive naturals, for example, 74109940 + ... + 74110960.

It is an arithmetic number, because the mean of its divisors is an integer number (1556853480).

Almost surely, 2^75666769450 is an apocalyptic number.

75666769450 is a deficient number, since it is larger than the sum of its proper divisors (73791164630).

75666769450 is a wasteful number, since it uses less digits than its factorization.

75666769450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664 (or 1659 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 61.

The spelling of 75666769450 in words is "seventy-five billion, six hundred sixty-six million, seven hundred sixty-nine thousand, four hundred fifty".