8138450735 has 4 divisors (see below), whose sum is σ = 9766140888. Its totient is φ = 6510760584.

The previous prime is 8138450717. The next prime is 8138450741. The reversal of 8138450735 is 5370548318.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5370548318 = 2 ⋅2685274159.

It is a cyclic number.

It is not a de Polignac number, because 8138450735 - 2¹⁴ = 8138434351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 813845069 + ... + 813845078.

It is an arithmetic number, because the mean of its divisors is an integer number (2441535222).

Almost surely, 2^8138450735 is an apocalyptic number.

8138450735 is a deficient number, since it is larger than the sum of its proper divisors (1627690153).

8138450735 is a wasteful number, since it uses less digits than its factorization.

8138450735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627690152.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 8138450735 is about 90213.3622863043. The cubic root of 8138450735 is about 2011.4716362270.

It can be divided in two parts, 813 and 8450735, that added together give a palindrome (8451548).

The spelling of 8138450735 in words is "eight billion, one hundred thirty-eight million, four hundred fifty thousand, seven hundred thirty-five".