1372085351717 has 8 divisors (see below), whose sum is σ = 1377824748696. Its totient is φ = 1366351610112.

The previous prime is 1372085351699. The next prime is 1372085351743. The reversal of 1372085351717 is 7171535802731.

It can be written as a sum of positive squares in 4 ways, for example, as 16383744001 + 1355701607716 = 127999^2 + 1164346^2 .

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 1372085351717 - 2²⁶ = 1372018242853 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 (1372085351317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927248 + ... + 1898409.

It is an arithmetic number, because the mean of its divisors is an integer number (172228093587).

Almost surely, 2^{1372085351717} is an apocalyptic number.

It is an amenable number.

1372085351717 is a deficient number, since it is larger than the sum of its proper divisors (5739396979).

1372085351717 is a wasteful number, since it uses less digits than its factorization.

1372085351717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2827687.

The product of its (nonzero) digits is 1234800, while the sum is 50.

The spelling of 1372085351717 in words is "one trillion, three hundred seventy-two billion, eighty-five million, three hundred fifty-one thousand, seven hundred seventeen".