7138580278864 has 20 divisors (see below), whose sum is σ = 14644587484404. Its totient is φ = 3359331895808.

The previous prime is 7138580278831. The next prime is 7138580278867. The reversal of 7138580278864 is 4688720858317.

It can be written as a sum of positive squares in 2 ways, for example, as 3048446160400 + 4090134118464 = 1745980^2 + 2022408^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7138580278864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138580278867) 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, 13122389947 + ... + 13122390490.

Almost surely, 2^{7138580278864} is an apocalyptic number.

It is an amenable number.

7138580278864 is an abundant number, since it is smaller than the sum of its proper divisors (7506007205540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7138580278864 is a wasteful number, since it uses less digits than its factorization.

7138580278864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26244780462 (or 26244780456 counting only the distinct ones).

The product of its (nonzero) digits is 144506880, while the sum is 67.

The spelling of 7138580278864 in words is "seven trillion, one hundred thirty-eight billion, five hundred eighty million, two hundred seventy-eight thousand, eight hundred sixty-four".