3499689648 has 160 divisors (see below), whose sum is σ = 11713139200. Its totient is φ = 874395648.

The previous prime is 3499689631. The next prime is 3499689689. The reversal of 3499689648 is 8469869943.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61908 + ... + 104076.

It is an arithmetic number, because the mean of its divisors is an integer number (73207120).

Almost surely, 2^3499689648 is an apocalyptic number.

3499689648 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 3499689648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5856569600).

3499689648 is an abundant number, since it is smaller than the sum of its proper divisors (8213449552).

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

3499689648 is a wasteful number, since it uses less digits than its factorization.

3499689648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42219 (or 42213 counting only the distinct ones).

The product of its digits is 80621568, while the sum is 66.

The square root of 3499689648 is about 59158.1748197153. The cubic root of 3499689648 is about 1518.2496078751.

The spelling of 3499689648 in words is "three billion, four hundred ninety-nine million, six hundred eighty-nine thousand, six hundred forty-eight".