75855488455857 has 64 divisors (see below), whose sum is σ = 116016681957120. Its totient is φ = 43679654400000.

The previous prime is 75855488455853. The next prime is 75855488455909.

It is a happy number.

75855488455857 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 75855488455857 - 2² = 75855488455853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75855488455857.

It is not an unprimeable number, because it can be changed into a prime (75855488455853) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3785869 + ... + 12885797.

It is an arithmetic number, because the mean of its divisors is an integer number (1812760655580).

Almost surely, 2^{75855488455857} is an apocalyptic number.

It is an amenable number.

75855488455857 is a deficient number, since it is larger than the sum of its proper divisors (40161193501263).

75855488455857 is a wasteful number, since it uses less digits than its factorization.

75855488455857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9100146.

The product of its digits is 50176000000, while the sum is 84.

The spelling of 75855488455857 in words is "seventy-five trillion, eight hundred fifty-five billion, four hundred eighty-eight million, four hundred fifty-five thousand, eight hundred fifty-seven".