75840630405121 has 16 divisors (see below), whose sum is σ = 76860467150544. Its totient is φ = 74828928927744.

The previous prime is 75840630405091. The next prime is 75840630405149. The reversal of 75840630405121 is 12150403604857.

It can be written as a sum of positive squares in 8 ways, for example, as 276293204496 + 75564337200625 = 525636^2 + 8692775^2 .

It is a cyclic number.

It is not a de Polignac number, because 75840630405121 - 2²⁹ = 75840093534209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75840630405151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12439945 + ... + 17505241.

It is an arithmetic number, because the mean of its divisors is an integer number (4803779196909).

Almost surely, 2^{75840630405121} is an apocalyptic number.

It is an amenable number.

75840630405121 is a deficient number, since it is larger than the sum of its proper divisors (1019836745423).

75840630405121 is a wasteful number, since it uses less digits than its factorization.

75840630405121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5066100.

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 75840630405121 in words is "seventy-five trillion, eight hundred forty billion, six hundred thirty million, four hundred five thousand, one hundred twenty-one".