1649302440100 has 144 divisors (see below), whose sum is σ = 4188738153600. Its totient is φ = 551883064320.

The previous prime is 1649302439989. The next prime is 1649302440109. The reversal of 1649302440100 is 10442039461.

It is not an unprimeable number, because it can be changed into a prime (1649302440109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38777646 + ... + 38820154.

It is an arithmetic number, because the mean of its divisors is an integer number (29088459400).

Almost surely, 2^{1649302440100} is an apocalyptic number.

1649302440100 is a gapful number since it is divisible by the number (10) 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 1649302440100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2094369076800).

1649302440100 is an abundant number, since it is smaller than the sum of its proper divisors (2539435713500).

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

1649302440100 is a wasteful number, since it uses less digits than its factorization.

1649302440100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43862 (or 43855 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

Adding to 1649302440100 its reverse (10442039461), we get a palindrome (1659744479561).

The spelling of 1649302440100 in words is "one trillion, six hundred forty-nine billion, three hundred two million, four hundred forty thousand, one hundred".