8139738651 has 16 divisors (see below), whose sum is σ = 12128393088. Its totient is φ = 4812852800.

The previous prime is 8139738641. The next prime is 8139738671. The reversal of 8139738651 is 1568379318.

It is a cyclic number.

It is not a de Polignac number, because 8139738651 - 2¹⁵ = 8139705883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8139738594 and 8139738603.

It is not an unprimeable number, because it can be changed into a prime (8139738631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3006681 + ... + 3009386.

It is an arithmetic number, because the mean of its divisors is an integer number (758024568).

Almost surely, 2^8139738651 is an apocalyptic number.

8139738651 is a deficient number, since it is larger than the sum of its proper divisors (3988654437).

8139738651 is a wasteful number, since it uses less digits than its factorization.

8139738651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6016122.

The product of its digits is 1088640, while the sum is 51.

The square root of 8139738651 is about 90220.5001704158. The cubic root of 8139738651 is about 2011.5777362676.

The spelling of 8139738651 in words is "eight billion, one hundred thirty-nine million, seven hundred thirty-eight thousand, six hundred fifty-one".