11851276320 has 384 divisors, whose sum is σ = 45768602880. Its totient is φ = 2845532160.

The previous prime is 11851276319. The next prime is 11851276357. The reversal of 11851276320 is 2367215811.

11851276320 is a `hidden beast` number, since 1 + 1 + 8 + 5 + 12 + 7 + 632 + 0 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 2299987 + ... + 2305133.

It is an arithmetic number, because the mean of its divisors is an integer number (119189070).

Almost surely, 2^11851276320 is an apocalyptic number.

11851276320 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 11851276320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22884301440).

11851276320 is an abundant number, since it is smaller than the sum of its proper divisors (33917326560).

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

11851276320 is a wasteful number, since it uses less digits than its factorization.

11851276320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5225 (or 5211 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 11851276320 in words is "eleven billion, eight hundred fifty-one million, two hundred seventy-six thousand, three hundred twenty".