9138746534 has 16 divisors (see below), whose sum is σ = 13918126848. Its totient is φ = 4499424072.

The previous prime is 9138746509. The next prime is 9138746567. The reversal of 9138746534 is 4356478319.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375047 + ... + 398669.

It is an arithmetic number, because the mean of its divisors is an integer number (869882928).

Almost surely, 2^9138746534 is an apocalyptic number.

9138746534 is a deficient number, since it is larger than the sum of its proper divisors (4779380314).

9138746534 is a wasteful number, since it uses less digits than its factorization.

9138746534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26579.

The product of its digits is 2177280, while the sum is 50.

The square root of 9138746534 is about 95596.7914419726. The cubic root of 9138746534 is about 2090.7184128550.

The spelling of 9138746534 in words is "nine billion, one hundred thirty-eight million, seven hundred forty-six thousand, five hundred thirty-four".