7138821684325 has 6 divisors (see below), whose sum is σ = 8852138888594. Its totient is φ = 5711057347440.

The previous prime is 7138821684307. The next prime is 7138821684343. The reversal of 7138821684325 is 5234861288317.

It is an interprime number because it is at equal distance from previous prime (7138821684307) and next prime (7138821684343).

It can be written as a sum of positive squares in 3 ways, for example, as 1074491876929 + 6064329807396 = 1036577^2 + 2462586^2 .

It is not a de Polignac number, because 7138821684325 - 2¹¹ = 7138821682277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7138821684325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142776433662 + ... + 142776433711.

Almost surely, 2^{7138821684325} is an apocalyptic number.

It is an amenable number.

7138821684325 is a deficient number, since it is larger than the sum of its proper divisors (1713317204269).

7138821684325 is a wasteful number, since it uses less digits than its factorization.

7138821684325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285552867383 (or 285552867378 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 58.

The spelling of 7138821684325 in words is "seven trillion, one hundred thirty-eight billion, eight hundred twenty-one million, six hundred eighty-four thousand, three hundred twenty-five".