3915323621245 has 8 divisors (see below), whose sum is σ = 4699039766616. Its totient is φ = 3131824616256.

The previous prime is 3915323621207. The next prime is 3915323621267. The reversal of 3915323621245 is 5421263235193.

It can be written as a sum of positive squares in 4 ways, for example, as 1019043813529 + 2896279807716 = 1009477^2 + 1701846^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3915323621245 - 2²⁵ = 3915290066813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3915323621195 and 3915323621204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54245422 + ... + 54317551.

It is an arithmetic number, because the mean of its divisors is an integer number (587379970827).

Almost surely, 2^{3915323621245} is an apocalyptic number.

It is an amenable number.

3915323621245 is a deficient number, since it is larger than the sum of its proper divisors (783716145371).

3915323621245 is a wasteful number, since it uses less digits than its factorization.

3915323621245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108570191.

The product of its digits is 1166400, while the sum is 46.

The spelling of 3915323621245 in words is "three trillion, nine hundred fifteen billion, three hundred twenty-three million, six hundred twenty-one thousand, two hundred forty-five".