1395138376959 has 16 divisors (see below), whose sum is σ = 1912670258400. Its totient is φ = 904171372416.

The previous prime is 1395138376937. The next prime is 1395138376993. The reversal of 1395138376959 is 9596738315931.

It is not a de Polignac number, because 1395138376959 - 2⁹ = 1395138376447 is a prime.

It is a super-2 number, since 2×1395138376959² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1395138376893 and 1395138376902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395138376859) 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 15 ways as a sum of consecutive naturals, for example, 40232464 + ... + 40267125.

It is an arithmetic number, because the mean of its divisors is an integer number (119541891150).

Almost surely, 2^{1395138376959} is an apocalyptic number.

1395138376959 is a deficient number, since it is larger than the sum of its proper divisors (517531881441).

1395138376959 is a wasteful number, since it uses less digits than its factorization.

1395138376959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80499754.

The product of its digits is 165337200, while the sum is 69.

The spelling of 1395138376959 in words is "one trillion, three hundred ninety-five billion, one hundred thirty-eight million, three hundred seventy-six thousand, nine hundred fifty-nine".