7138880268488 has 8 divisors (see below), whose sum is σ = 13385400503430. Its totient is φ = 3569440134240.

The previous prime is 7138880268479. The next prime is 7138880268511. The reversal of 7138880268488 is 8848620888317.

It can be written as a sum of positive squares in only one way, i.e., 6137203566244 + 1001676702244 = 2477338^2 + 1000838^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×7138880268488² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 446180016773 + ... + 446180016788.

Almost surely, 2^{7138880268488} is an apocalyptic number.

It is an amenable number.

7138880268488 is a deficient number, since it is larger than the sum of its proper divisors (6246520234942).

7138880268488 is a wasteful number, since it uses less digits than its factorization.

7138880268488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892360033567 (or 892360033563 counting only the distinct ones).

The product of its (nonzero) digits is 264241152, while the sum is 71.

The spelling of 7138880268488 in words is "seven trillion, one hundred thirty-eight billion, eight hundred eighty million, two hundred sixty-eight thousand, four hundred eighty-eight".