11138767860 has 192 divisors, whose sum is σ = 36784097280. Its totient is φ = 2488942080.

The previous prime is 11138767817. The next prime is 11138767891. The reversal of 11138767860 is 6876783111.

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 63 ways as a sum of consecutive naturals, for example, 451977 + ... + 475983.

It is an arithmetic number, because the mean of its divisors is an integer number (191583840).

Almost surely, 2^11138767860 is an apocalyptic number.

11138767860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11138767860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18392048640).

11138767860 is an abundant number, since it is smaller than the sum of its proper divisors (25645329420).

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

11138767860 is a wasteful number, since it uses less digits than its factorization.

11138767860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24086 (or 24084 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 48.

The spelling of 11138767860 in words is "eleven billion, one hundred thirty-eight million, seven hundred sixty-seven thousand, eight hundred sixty".