3516243968 has 168 divisors, whose sum is σ = 7864822980. Its totient is φ = 1568931840.

The previous prime is 3516243961. The next prime is 3516243989. The reversal of 3516243968 is 8693426153.

It can be written as a sum of positive squares in 2 ways, for example, as 3266351104 + 249892864 = 57152^2 + 15808^2 .

It is not an unprimeable number, because it can be changed into a prime (3516243961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85762028 + ... + 85762068.

Almost surely, 2^3516243968 is an apocalyptic number.

3516243968 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 3516243968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3932411490).

3516243968 is an abundant number, since it is smaller than the sum of its proper divisors (4348579012).

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

3516243968 is an equidigital number, since it uses as much as digits as its factorization.

3516243968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 91 counting only the distinct ones).

The product of its digits is 933120, while the sum is 47.

The square root of 3516243968 is about 59297.9254949109. The cubic root of 3516243968 is about 1520.6397307153.

The spelling of 3516243968 in words is "three billion, five hundred sixteen million, two hundred forty-three thousand, nine hundred sixty-eight".