3921499008 has 576 divisors, whose sum is σ = 14221509120. Its totient is φ = 1071221760.

The previous prime is 3921498967. The next prime is 3921499019. The reversal of 3921499008 is 8009941293.

3921499008 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (576).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 47246935 + ... + 47247017.

It is an arithmetic number, because the mean of its divisors is an integer number (24690120).

Almost surely, 2^3921499008 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 3921499008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7110754560).

3921499008 is an abundant number, since it is smaller than the sum of its proper divisors (10300010112).

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

3921499008 is an equidigital number, since it uses as much as digits as its factorization.

3921499008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 3921499008 is about 62621.8732393083. The cubic root of 3921499008 is about 1576.9479896963.

The spelling of 3921499008 in words is "three billion, nine hundred twenty-one million, four hundred ninety-nine thousand, eight".