1395151883821 has 16 divisors (see below), whose sum is σ = 1477675330560. Its totient is φ = 1314958841280.

The previous prime is 1395151883819. The next prime is 1395151883831. The reversal of 1395151883821 is 1283881515931.

It is not a de Polignac number, because 1395151883821 - 2¹ = 1395151883819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395151883831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1849716 + ... + 2492338.

It is an arithmetic number, because the mean of its divisors is an integer number (92354708160).

Almost surely, 2^{1395151883821} is an apocalyptic number.

It is an amenable number.

1395151883821 is a deficient number, since it is larger than the sum of its proper divisors (82523446739).

1395151883821 is a wasteful number, since it uses less digits than its factorization.

1395151883821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644436.

The product of its digits is 2073600, while the sum is 55.

The spelling of 1395151883821 in words is "one trillion, three hundred ninety-five billion, one hundred fifty-one million, eight hundred eighty-three thousand, eight hundred twenty-one".