75808933421 has 8 divisors (see below), whose sum is σ = 82362872760. Its totient is φ = 69358205952.

The previous prime is 75808933411. The next prime is 75808933427. The reversal of 75808933421 is 12433980857.

It can be written as a sum of positive squares in 4 ways, for example, as 576672196 + 75232261225 = 24014^2 + 274285^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75808933421 is a prime.

It is a super-2 number, since 2×75808933421² (a number of 23 digits) contains 22 as substring.

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 75808933421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75808933427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25801436 + ... + 25804373.

It is an arithmetic number, because the mean of its divisors is an integer number (10295359095).

Almost surely, 2^75808933421 is an apocalyptic number.

It is an amenable number.

75808933421 is a deficient number, since it is larger than the sum of its proper divisors (6553939339).

75808933421 is a wasteful number, since it uses less digits than its factorization.

75808933421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51605935.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 75808933421 in words is "seventy-five billion, eight hundred eight million, nine hundred thirty-three thousand, four hundred twenty-one".