72551754575177 has 4 divisors (see below), whose sum is σ = 72557314535700. Its totient is φ = 72546194614656.

The previous prime is 72551754575141. The next prime is 72551754575191. The reversal of 72551754575177 is 77157545715527.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13313040879616 + 59238713695561 = 3648704^2 + 7696669^2 .

It is a cyclic number.

It is not a de Polignac number, because 72551754575177 - 2¹² = 72551754571081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72551754575137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2779960688 + ... + 2779986785.

It is an arithmetic number, because the mean of its divisors is an integer number (18139328633925).

Almost surely, 2^{72551754575177} is an apocalyptic number.

It is an amenable number.

72551754575177 is a deficient number, since it is larger than the sum of its proper divisors (5559960523).

72551754575177 is a wasteful number, since it uses less digits than its factorization.

72551754575177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5559960522.

The product of its digits is 420175000, while the sum is 68.

The spelling of 72551754575177 in words is "seventy-two trillion, five hundred fifty-one billion, seven hundred fifty-four million, five hundred seventy-five thousand, one hundred seventy-seven".