3911793872 has 120 divisors (see below), whose sum is σ = 9321278400. Its totient is φ = 1581285888.

The previous prime is 3911793871. The next prime is 3911793877. The reversal of 3911793872 is 2783971193.

It is a self number, because there is not a number n which added to its sum of digits gives 3911793872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3911793871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4662029 + ... + 4662867.

It is an arithmetic number, because the mean of its divisors is an integer number (77677320).

Almost surely, 2^3911793872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3911793872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4660639200).

3911793872 is an abundant number, since it is smaller than the sum of its proper divisors (5409484528).

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

3911793872 is a wasteful number, since it uses less digits than its factorization.

3911793872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193 (or 1180 counting only the distinct ones).

The product of its digits is 571536, while the sum is 50.

The square root of 3911793872 is about 62544.3352510841. The cubic root of 3911793872 is about 1575.6460098902.

The spelling of 3911793872 in words is "three billion, nine hundred eleven million, seven hundred ninety-three thousand, eight hundred seventy-two".