75331813357 has 8 divisors (see below), whose sum is σ = 76797859320. Its totient is φ = 73867422720.

The previous prime is 75331813351. The next prime is 75331813379.

75331813357 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 29664550756 + 45667262601 = 172234^2 + 213699^2 .

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 75331813357 - 2⁷ = 75331813229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75331813351) 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, 321732 + ... + 504157.

It is an arithmetic number, because the mean of its divisors is an integer number (9599732415).

Almost surely, 2^75331813357 is an apocalyptic number.

It is an amenable number.

75331813357 is a deficient number, since it is larger than the sum of its proper divisors (1466045963).

75331813357 is a wasteful number, since it uses less digits than its factorization.

75331813357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827663.

The product of its digits is 793800, while the sum is 46.

The spelling of 75331813357 in words is "seventy-five billion, three hundred thirty-one million, eight hundred thirteen thousand, three hundred fifty-seven".