57628571969 has 2 divisors, whose sum is σ = 57628571970. Its totient is φ = 57628571968.

The previous prime is 57628571831. The next prime is 57628571981. The reversal of 57628571969 is 96917582675.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56864602369 + 763969600 = 238463^2 + 27640^2 .

It is a cyclic number.

It is not a de Polignac number, because 57628571969 - 2⁸ = 57628571713 is a prime.

It is a super-2 number, since 2×57628571969² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57628571369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28814285984 + 28814285985.

It is an arithmetic number, because the mean of its divisors is an integer number (28814285985).

Almost surely, 2^57628571969 is an apocalyptic number.

It is an amenable number.

57628571969 is a deficient number, since it is larger than the sum of its proper divisors (1).

57628571969 is an equidigital number, since it uses as much as digits as its factorization.

57628571969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57153600, while the sum is 65.

The spelling of 57628571969 in words is "fifty-seven billion, six hundred twenty-eight million, five hundred seventy-one thousand, nine hundred sixty-nine".