1395274171828 has 12 divisors (see below), whose sum is σ = 2585360965572. Its totient is φ = 656599610240.

The previous prime is 1395274171793. The next prime is 1395274171831. The reversal of 1395274171828 is 8281714725931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 514206594724 + 881067577104 = 717082^2 + 938652^2 .

It is a super-3 number, since 3×1395274171828³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10259368843 + ... + 10259368978.

It is an arithmetic number, because the mean of its divisors is an integer number (215446747131).

Almost surely, 2^{1395274171828} is an apocalyptic number.

It is an amenable number.

1395274171828 is a deficient number, since it is larger than the sum of its proper divisors (1190086793744).

1395274171828 is a wasteful number, since it uses less digits than its factorization.

1395274171828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20518737842 (or 20518737840 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 58.

The spelling of 1395274171828 in words is "one trillion, three hundred ninety-five billion, two hundred seventy-four million, one hundred seventy-one thousand, eight hundred twenty-eight".