5138782627531 has 4 divisors (see below), whose sum is σ = 5872894431472. Its totient is φ = 4404670823592.

The previous prime is 5138782627487. The next prime is 5138782627547. The reversal of 5138782627531 is 1357262878315.

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

It is a cyclic number.

It is not a de Polignac number, because 5138782627531 - 2²⁷ = 5138648409803 is a prime.

It is a super-2 number, since 2×5138782627531² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5138782667531) 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, 367055901960 + ... + 367055901973.

It is an arithmetic number, because the mean of its divisors is an integer number (1468223607868).

Almost surely, 2^{5138782627531} is an apocalyptic number.

5138782627531 is a deficient number, since it is larger than the sum of its proper divisors (734111803941).

5138782627531 is an equidigital number, since it uses as much as digits as its factorization.

5138782627531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734111803940.

The product of its digits is 16934400, while the sum is 58.

The spelling of 5138782627531 in words is "five trillion, one hundred thirty-eight billion, seven hundred eighty-two million, six hundred twenty-seven thousand, five hundred thirty-one".