75364608821 has 8 divisors (see below), whose sum is σ = 79789732320. Its totient is φ = 70985341872.

The previous prime is 75364608817. The next prime is 75364608853. The reversal of 75364608821 is 12880646357.

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 75364608821 - 2² = 75364608817 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 75364608821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75364608871) 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, 11460755 + ... + 11467328.

It is an arithmetic number, because the mean of its divisors is an integer number (9973716540).

Almost surely, 2^75364608821 is an apocalyptic number.

It is an amenable number.

75364608821 is a deficient number, since it is larger than the sum of its proper divisors (4425123499).

75364608821 is a wasteful number, since it uses less digits than its factorization.

75364608821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22928275.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 75364608821 in words is "seventy-five billion, three hundred sixty-four million, six hundred eight thousand, eight hundred twenty-one".