9138623403 has 32 divisors (see below), whose sum is σ = 15001939456. Its totient is φ = 4818693888.

The previous prime is 9138623399. The next prime is 9138623443. The reversal of 9138623403 is 3043268319.

It is not a de Polignac number, because 9138623403 - 2² = 9138623399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (9138623443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1392576 + ... + 1399122.

It is an arithmetic number, because the mean of its divisors is an integer number (468810608).

Almost surely, 2^9138623403 is an apocalyptic number.

9138623403 is a deficient number, since it is larger than the sum of its proper divisors (5863316053).

9138623403 is a wasteful number, since it uses less digits than its factorization.

9138623403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11683.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 9138623403 is about 95596.1474276030. The cubic root of 9138623403 is about 2090.7090230404.

The spelling of 9138623403 in words is "nine billion, one hundred thirty-eight million, six hundred twenty-three thousand, four hundred three".