8138489007 has 16 divisors (see below), whose sum is σ = 11857593600. Its totient is φ = 4924171200.

The previous prime is 8138488961. The next prime is 8138489011. The reversal of 8138489007 is 7009848318.

It is not a de Polignac number, because 8138489007 - 2¹⁶ = 8138423471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8138489077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186094 + ... + 225627.

It is an arithmetic number, because the mean of its divisors is an integer number (741099600).

Almost surely, 2^8138489007 is an apocalyptic number.

8138489007 is a deficient number, since it is larger than the sum of its proper divisors (3719104593).

8138489007 is a wasteful number, since it uses less digits than its factorization.

8138489007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412334.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 8138489007 is about 90213.5744054075. The cubic root of 8138489007 is about 2011.4747892809.

The spelling of 8138489007 in words is "eight billion, one hundred thirty-eight million, four hundred eighty-nine thousand, seven".