75078533907 has 32 divisors (see below), whose sum is σ = 120005130560. Its totient is φ = 46116656640.

The previous prime is 75078533851. The next prime is 75078533923. The reversal of 75078533907 is 70933587057.

It is not a de Polignac number, because 75078533907 - 2¹⁴ = 75078517523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75078533977) 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 31 ways as a sum of consecutive naturals, for example, 7798 + ... + 387579.

It is an arithmetic number, because the mean of its divisors is an integer number (3750160330).

Almost surely, 2^75078533907 is an apocalyptic number.

75078533907 is a deficient number, since it is larger than the sum of its proper divisors (44926596653).

75078533907 is a wasteful number, since it uses less digits than its factorization.

75078533907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395940 (or 395934 counting only the distinct ones).

The product of its (nonzero) digits is 5556600, while the sum is 54.

The spelling of 75078533907 in words is "seventy-five billion, seventy-eight million, five hundred thirty-three thousand, nine hundred seven".