1395911023128 has 32 divisors (see below), whose sum is σ = 3877530620400. Its totient is φ = 465303674304.

The previous prime is 1395911023127. The next prime is 1395911023141. The reversal of 1395911023128 is 8213201195931.

1395911023128 is a `hidden beast` number, since 1 + 3 + 9 + 591 + 1 + 0 + 2 + 31 + 28 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395911023127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3231275301 + ... + 3231275732.

Almost surely, 2^{1395911023128} is an apocalyptic number.

1395911023128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1395911023128 is an abundant number, since it is smaller than the sum of its proper divisors (2481619597272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1395911023128 is a wasteful number, since it uses less digits than its factorization.

1395911023128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6462551048 (or 6462551038 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The spelling of 1395911023128 in words is "one trillion, three hundred ninety-five billion, nine hundred eleven million, twenty-three thousand, one hundred twenty-eight".