75478923115 has 16 divisors (see below), whose sum is σ = 93141051552. Its totient is φ = 58676396544.

The previous prime is 75478923103. The next prime is 75478923131. The reversal of 75478923115 is 51132987457.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75478923115 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113614 + ... + 404803.

It is an arithmetic number, because the mean of its divisors is an integer number (5821315722).

Almost surely, 2^75478923115 is an apocalyptic number.

75478923115 is a deficient number, since it is larger than the sum of its proper divisors (17662128437).

75478923115 is a wasteful number, since it uses less digits than its factorization.

75478923115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519246.

The product of its digits is 2116800, while the sum is 52.

The spelling of 75478923115 in words is "seventy-five billion, four hundred seventy-eight million, nine hundred twenty-three thousand, one hundred fifteen".