1395826387542 has 24 divisors (see below), whose sum is σ = 3128576387040. Its totient is φ = 449231480880.

The previous prime is 1395826387541. The next prime is 1395826387559. The reversal of 1395826387542 is 2457836285931.

1395826387542 is a `hidden beast` number, since 1 + 3 + 9 + 5 + 8 + 2 + 6 + 3 + 87 + 542 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1395826387542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395826387541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1336997934 + ... + 1336998977.

It is an arithmetic number, because the mean of its divisors is an integer number (130357349460).

Almost surely, 2^{1395826387542} is an apocalyptic number.

1395826387542 is an abundant number, since it is smaller than the sum of its proper divisors (1732749999498).

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

1395826387542 is a wasteful number, since it uses less digits than its factorization.

1395826387542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2673996948 (or 2673996945 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 63.

The spelling of 1395826387542 in words is "one trillion, three hundred ninety-five billion, eight hundred twenty-six million, three hundred eighty-seven thousand, five hundred forty-two".