3485449643640 has 256 divisors, whose sum is σ = 10774564444800. Its totient is φ = 901340504064.

The previous prime is 3485449643629. The next prime is 3485449643647. The reversal of 3485449643640 is 463469445843.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3485449643647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3188882934 + ... + 3188884026.

Almost surely, 2^{3485449643640} is an apocalyptic number.

3485449643640 is a gapful number since it is divisible by the number (30) 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 3485449643640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5387282222400).

3485449643640 is an abundant number, since it is smaller than the sum of its proper divisors (7289114801160).

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

3485449643640 is a wasteful number, since it uses less digits than its factorization.

3485449643640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866 (or 2862 counting only the distinct ones).

The product of its (nonzero) digits is 119439360, while the sum is 60.

The spelling of 3485449643640 in words is "three trillion, four hundred eighty-five billion, four hundred forty-nine million, six hundred forty-three thousand, six hundred forty".