3709391616 has 216 divisors, whose sum is σ = 12326006784. Its totient is φ = 1050900480.

The previous prime is 3709391611. The next prime is 3709391629. The reversal of 3709391616 is 6161939073.

It is not an unprimeable number, because it can be changed into a prime (3709391611) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2047351 + ... + 2049161.

Almost surely, 2^3709391616 is an apocalyptic number.

3709391616 is a gapful number since it is divisible by the number (36) 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 3709391616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6163003392).

3709391616 is an abundant number, since it is smaller than the sum of its proper divisors (8616615168).

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

3709391616 is a wasteful number, since it uses less digits than its factorization.

3709391616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967 (or 1950 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 3709391616 is about 60904.7749852177. The cubic root of 3709391616 is about 1547.9879012735.

The spelling of 3709391616 in words is "three billion, seven hundred nine million, three hundred ninety-one thousand, six hundred sixteen".