11838950280 has 192 divisors, whose sum is σ = 42249392640. Its totient is φ = 2971302912.

The previous prime is 11838950269. The next prime is 11838950329. The reversal of 11838950280 is 8205983811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129417 + ... + 201063.

It is an arithmetic number, because the mean of its divisors is an integer number (220048920).

Almost surely, 2^11838950280 is an apocalyptic number.

11838950280 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 11838950280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21124696320).

11838950280 is an abundant number, since it is smaller than the sum of its proper divisors (30410442360).

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

11838950280 is a wasteful number, since it uses less digits than its factorization.

11838950280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71690 (or 71674 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The spelling of 11838950280 in words is "eleven billion, eight hundred thirty-eight million, nine hundred fifty thousand, two hundred eighty".