75817145323802 has 16 divisors (see below), whose sum is σ = 119049452827200. Its totient is φ = 36144526003872.

The previous prime is 75817145323757. The next prime is 75817145323847. The reversal of 75817145323802 is 20832354171857.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (75817145323757) and next prime (75817145323847).

It is a super-2 number, since 2×75817145323802² (a number of 29 digits) contains 22 as substring.

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, 2632891052 + ... + 2632919847.

It is an arithmetic number, because the mean of its divisors is an integer number (7440590801700).

Almost surely, 2^{75817145323802} is an apocalyptic number.

75817145323802 is a deficient number, since it is larger than the sum of its proper divisors (43232307503398).

75817145323802 is a wasteful number, since it uses less digits than its factorization.

75817145323802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5265811237.

The product of its (nonzero) digits is 11289600, while the sum is 56.

The spelling of 75817145323802 in words is "seventy-five trillion, eight hundred seventeen billion, one hundred forty-five million, three hundred twenty-three thousand, eight hundred two".