3911989824 has 112 divisors (see below), whose sum is σ = 11619585600. Its totient is φ = 1290498048.

The previous prime is 3911989817. The next prime is 3911989831. The reversal of 3911989824 is 4289891193.

It is an interprime number because it is at equal distance from previous prime (3911989817) and next prime (3911989831).

It is a super-3 number, since 3×3911989824³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155947 + ... + 179285.

It is an arithmetic number, because the mean of its divisors is an integer number (103746300).

Almost surely, 2^3911989824 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 3911989824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5809792800).

3911989824 is an abundant number, since it is smaller than the sum of its proper divisors (7707595776).

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

3911989824 is a wasteful number, since it uses less digits than its factorization.

3911989824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23457 (or 23441 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 54.

The square root of 3911989824 is about 62545.9017362449. The cubic root of 3911989824 is about 1575.6723188627.

The spelling of 3911989824 in words is "three billion, nine hundred eleven million, nine hundred eighty-nine thousand, eight hundred twenty-four".