11873571840 has 352 divisors, whose sum is σ = 45449295360. Its totient is φ = 2922283008.

The previous prime is 11873571803. The next prime is 11873571847. The reversal of 11873571840 is 4817537811.

11873571840 is a `hidden beast` number, since 1 + 1 + 8 + 73 + 571 + 8 + 4 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11873571847) 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, 1793817 + ... + 1800423.

Almost surely, 2^11873571840 is an apocalyptic number.

11873571840 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 11873571840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22724647680).

11873571840 is an abundant number, since it is smaller than the sum of its proper divisors (33575723520).

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

11873571840 is a wasteful number, since it uses less digits than its factorization.

11873571840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6654 (or 6630 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 45.

The spelling of 11873571840 in words is "eleven billion, eight hundred seventy-three million, five hundred seventy-one thousand, eight hundred forty".