1395821298955 has 4 divisors (see below), whose sum is σ = 1674985558752. Its totient is φ = 1116657039160.

The previous prime is 1395821298947. The next prime is 1395821299013. The reversal of 1395821298955 is 5598921285931.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1395821298955 - 2³ = 1395821298947 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139582129891 + ... + 139582129900.

It is an arithmetic number, because the mean of its divisors is an integer number (418746389688).

Almost surely, 2^{1395821298955} is an apocalyptic number.

1395821298955 is a deficient number, since it is larger than the sum of its proper divisors (279164259797).

1395821298955 is an equidigital number, since it uses as much as digits as its factorization.

1395821298955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279164259796.

The product of its digits is 69984000, while the sum is 67.

The spelling of 1395821298955 in words is "one trillion, three hundred ninety-five billion, eight hundred twenty-one million, two hundred ninety-eight thousand, nine hundred fifty-five".