11850870738 has 64 divisors (see below), whose sum is σ = 27509760000. Its totient is φ = 3333455424.

The previous prime is 11850870737. The next prime is 11850870749. The reversal of 11850870738 is 83707805811.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11850870737) 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, 1186188 + ... + 1196136.

It is an arithmetic number, because the mean of its divisors is an integer number (429840000).

Almost surely, 2^11850870738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11850870738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13754880000).

11850870738 is an abundant number, since it is smaller than the sum of its proper divisors (15658889262).

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

11850870738 is a wasteful number, since it uses less digits than its factorization.

11850870738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10399.

The product of its (nonzero) digits is 376320, while the sum is 48.

The spelling of 11850870738 in words is "eleven billion, eight hundred fifty million, eight hundred seventy thousand, seven hundred thirty-eight".