11138718390 has 32 divisors (see below), whose sum is σ = 26737931520. Its totient is φ = 2969768544.

The previous prime is 11138718313. The next prime is 11138718413. The reversal of 11138718390 is 9381783111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142951 + ... + 206669.

It is an arithmetic number, because the mean of its divisors is an integer number (835560360).

Almost surely, 2^11138718390 is an apocalyptic number.

11138718390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11138718390 is an abundant number, since it is smaller than the sum of its proper divisors (15599213130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11138718390 is a wasteful number, since it uses less digits than its factorization.

11138718390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69556.

The product of its (nonzero) digits is 36288, while the sum is 42.

The spelling of 11138718390 in words is "eleven billion, one hundred thirty-eight million, seven hundred eighteen thousand, three hundred ninety".