75228717151157 has 16 divisors (see below), whose sum is σ = 76768720974000. Its totient is φ = 73693266296832.

The previous prime is 75228717151097. The next prime is 75228717151183. The reversal of 75228717151157 is 75115171782257.

It can be written as a sum of positive squares in 8 ways, for example, as 19084657222801 + 56144059928356 = 4368599^2 + 7492934^2 .

It is a cyclic number.

It is not a de Polignac number, because 75228717151157 - 2⁸ = 75228717150901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75228717151096 and 75228717151105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75228717151187) 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, 90304469 + ... + 91133717.

It is an arithmetic number, because the mean of its divisors is an integer number (4798045060875).

Almost surely, 2^{75228717151157} is an apocalyptic number.

It is an amenable number.

75228717151157 is a deficient number, since it is larger than the sum of its proper divisors (1540003822843).

75228717151157 is a wasteful number, since it uses less digits than its factorization.

75228717151157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831992.

The product of its digits is 9604000, while the sum is 59.

The spelling of 75228717151157 in words is "seventy-five trillion, two hundred twenty-eight billion, seven hundred seventeen million, one hundred fifty-one thousand, one hundred fifty-seven".