9138679712 has 12 divisors (see below), whose sum is σ = 17991775746. Its totient is φ = 4569339840.

The previous prime is 9138679709. The next prime is 9138679741. The reversal of 9138679712 is 2179768319.

It can be written as a sum of positive squares in only one way, i.e., 6171045136 + 2967634576 = 78556^2 + 54476^2 .

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142791839 + ... + 142791902.

Almost surely, 2^9138679712 is an apocalyptic number.

It is an amenable number.

9138679712 is a deficient number, since it is larger than the sum of its proper divisors (8853096034).

9138679712 is a wasteful number, since it uses less digits than its factorization.

9138679712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285583751 (or 285583743 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 53.

The square root of 9138679712 is about 95596.4419421560. The cubic root of 9138679712 is about 2090.7133171041.

The spelling of 9138679712 in words is "nine billion, one hundred thirty-eight million, six hundred seventy-nine thousand, seven hundred twelve".