5247138438602 has 4 divisors (see below), whose sum is σ = 7870707657906. Its totient is φ = 2623569219300.

The previous prime is 5247138438593. The next prime is 5247138438617. The reversal of 5247138438602 is 2068348317425.

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

It can be written as a sum of positive squares in only one way, i.e., 2693179670281 + 2553958768321 = 1641091^2 + 1598111^2 .

It is a super-3 number, since 3×5247138438602³ (a number of 39 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1311784609649 + ... + 1311784609652.

Almost surely, 2^{5247138438602} is an apocalyptic number.

5247138438602 is a deficient number, since it is larger than the sum of its proper divisors (2623569219304).

5247138438602 is a wasteful number, since it uses less digits than its factorization.

5247138438602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623569219303.

The product of its (nonzero) digits is 7741440, while the sum is 53.

The spelling of 5247138438602 in words is "five trillion, two hundred forty-seven billion, one hundred thirty-eight million, four hundred thirty-eight thousand, six hundred two".