75083069491945 has 16 divisors (see below), whose sum is σ = 95438811383568. Its totient is φ = 56509936680960.

The previous prime is 75083069491933. The next prime is 75083069491961. The reversal of 75083069491945 is 54919496038057.

It can be written as a sum of positive squares in 8 ways, for example, as 13804405223184 + 61278664268761 = 3715428^2 + 7828069^2 .

It is a de Polignac number, because none of the positive numbers 2^k-75083069491945 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181025976 + ... + 181440265.

It is an arithmetic number, because the mean of its divisors is an integer number (5964925711473).

Almost surely, 2^{75083069491945} is an apocalyptic number.

It is an amenable number.

75083069491945 is a deficient number, since it is larger than the sum of its proper divisors (20355741891623).

75083069491945 is a wasteful number, since it uses less digits than its factorization.

75083069491945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362468700.

The product of its (nonzero) digits is 293932800, while the sum is 70.

The spelling of 75083069491945 in words is "seventy-five trillion, eighty-three billion, sixty-nine million, four hundred ninety-one thousand, nine hundred forty-five".