75781899623 has 8 divisors (see below), whose sum is σ = 79099231968. Its totient is φ = 72466439584.

The previous prime is 75781899619. The next prime is 75781899667. The reversal of 75781899623 is 32699818757.

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 75781899623 - 2² = 75781899619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75781899623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75781899673) 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 7 ways as a sum of consecutive naturals, for example, 385040 + ... + 547557.

It is an arithmetic number, because the mean of its divisors is an integer number (9887403996).

Almost surely, 2^75781899623 is an apocalyptic number.

75781899623 is a deficient number, since it is larger than the sum of its proper divisors (3317332345).

75781899623 is a wasteful number, since it uses less digits than its factorization.

75781899623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936153.

The product of its digits is 45722880, while the sum is 65.

The spelling of 75781899623 in words is "seventy-five billion, seven hundred eighty-one million, eight hundred ninety-nine thousand, six hundred twenty-three".