5268138387 has 4 divisors (see below), whose sum is σ = 7024184520. Its totient is φ = 3512092256.

The previous prime is 5268138373. The next prime is 5268138409. The reversal of 5268138387 is 7838318625.

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 5268138387 - 2²⁶ = 5201029523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5268136387) 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, 878023062 + ... + 878023067.

It is an arithmetic number, because the mean of its divisors is an integer number (1756046130).

Almost surely, 2^5268138387 is an apocalyptic number.

5268138387 is a deficient number, since it is larger than the sum of its proper divisors (1756046133).

5268138387 is a wasteful number, since it uses less digits than its factorization.

5268138387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756046132.

The product of its digits is 1935360, while the sum is 51.

The square root of 5268138387 is about 72581.9425683827. The cubic root of 5268138387 is about 1740.0125937125.

The spelling of 5268138387 in words is "five billion, two hundred sixty-eight million, one hundred thirty-eight thousand, three hundred eighty-seven".