75999999905 has 8 divisors (see below), whose sum is σ = 96000000000. Its totient is φ = 57599999856.

The previous prime is 75999999877. The next prime is 75999999913. The reversal of 75999999905 is 50999999957.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75999999905 - 2¹⁶ = 75999934369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75999999905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399999905 + ... + 400000094.

It is an arithmetic number, because the mean of its divisors is an integer number (12000000000).

Almost surely, 2^75999999905 is an apocalyptic number.

It is an amenable number.

75999999905 is a deficient number, since it is larger than the sum of its proper divisors (20000000095).

75999999905 is a wasteful number, since it uses less digits than its factorization.

75999999905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800000023.

The product of its (nonzero) digits is 837019575, while the sum is 80.

The spelling of 75999999905 in words is "seventy-five billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred five".