57276565988 has 24 divisors (see below), whose sum is σ = 106904797272. Its totient is φ = 26756931584.

The previous prime is 57276565981. The next prime is 57276565999. The reversal of 57276565988 is 88956567275.

It can be written as a sum of positive squares in 4 ways, for example, as 27915058084 + 29361507904 = 167078^2 + 171352^2 .

It is a super-2 number, since 2×57276565988² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (68).

It is not an unprimeable number, because it can be changed into a prime (57276565981) 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 in 7 ways as a sum of consecutive naturals, for example, 3064781 + ... + 3083412.

It is an arithmetic number, because the mean of its divisors is an integer number (4454366553).

Almost surely, 2^57276565988 is an apocalyptic number.

It is an amenable number.

57276565988 is a deficient number, since it is larger than the sum of its proper divisors (49628231284).

57276565988 is a wasteful number, since it uses less digits than its factorization.

57276565988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6148351 (or 6148349 counting only the distinct ones).

The product of its digits is 254016000, while the sum is 68.

The spelling of 57276565988 in words is "fifty-seven billion, two hundred seventy-six million, five hundred sixty-five thousand, nine hundred eighty-eight".