11838531730 has 16 divisors (see below), whose sum is σ = 21314105280. Its totient is φ = 4734357552.

The previous prime is 11838531707. The next prime is 11838531739. The reversal of 11838531730 is 3713583811.

It is not an unprimeable number, because it can be changed into a prime (11838531739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83940 + ... + 175279.

It is an arithmetic number, because the mean of its divisors is an integer number (1332131580).

Almost surely, 2^11838531730 is an apocalyptic number.

11838531730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11838531730 is a deficient number, since it is larger than the sum of its proper divisors (9475573550).

11838531730 is a wasteful number, since it uses less digits than its factorization.

11838531730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263793.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 11838531730 in words is "eleven billion, eight hundred thirty-eight million, five hundred thirty-one thousand, seven hundred thirty".