7149393576817 has 4 divisors (see below), whose sum is σ = 7149441372660. Its totient is φ = 7149345780976.

The previous prime is 7149393576733. The next prime is 7149393576841. The reversal of 7149393576817 is 7186753939417.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2808738013041 + 4340655563776 = 1675929^2 + 2083424^2 .

It is a cyclic number.

It is not a de Polignac number, because 7149393576817 - 2³⁵ = 7115033838449 is a prime.

It is a super-2 number, since 2×7149393576817² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7149393576877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23672842 + ... + 23972947.

It is an arithmetic number, because the mean of its divisors is an integer number (1787360343165).

Almost surely, 2^{7149393576817} is an apocalyptic number.

It is an amenable number.

7149393576817 is a deficient number, since it is larger than the sum of its proper divisors (47795843).

7149393576817 is a wasteful number, since it uses less digits than its factorization.

7149393576817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47795842.

The product of its digits is 240045120, while the sum is 70.

The spelling of 7149393576817 in words is "seven trillion, one hundred forty-nine billion, three hundred ninety-three million, five hundred seventy-six thousand, eight hundred seventeen".