3739121568 has 384 divisors, whose sum is σ = 14134579200. Its totient is φ = 933866496.

The previous prime is 3739121557. The next prime is 3739121597. The reversal of 3739121568 is 8651219373.

3739121568 is a `hidden beast` number, since 3 + 73 + 9 + 12 + 1 + 568 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1492605 + ... + 1495107.

It is an arithmetic number, because the mean of its divisors is an integer number (36808800).

Almost surely, 2^3739121568 is an apocalyptic number.

3739121568 is a gapful number since it is divisible by the number (38) 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 3739121568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7067289600).

3739121568 is an abundant number, since it is smaller than the sum of its proper divisors (10395457632).

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

3739121568 is a wasteful number, since it uses less digits than its factorization.

3739121568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561 (or 2547 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 3739121568 is about 61148.3570343472. The cubic root of 3739121568 is about 1552.1124949456.

The spelling of 3739121568 in words is "three billion, seven hundred thirty-nine million, one hundred twenty-one thousand, five hundred sixty-eight".