1641313648 has 40 divisors (see below), whose sum is σ = 3427124400. Its totient is φ = 756985344.

The previous prime is 1641313633. The next prime is 1641313669. The reversal of 1641313648 is 8463131461.

It is a super-2 number, since 2×1641313648² = 5387820982222135808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509868 + ... + 513076.

It is an arithmetic number, because the mean of its divisors is an integer number (85678110).

Almost surely, 2^1641313648 is an apocalyptic number.

It is an amenable number.

1641313648 is an abundant number, since it is smaller than the sum of its proper divisors (1785810752).

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

1641313648 is a wasteful number, since it uses less digits than its factorization.

1641313648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5689 (or 5683 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 1641313648 is about 40513.1293286510. The cubic root of 1641313648 is about 1179.5884919588.

The spelling of 1641313648 in words is "one billion, six hundred forty-one million, three hundred thirteen thousand, six hundred forty-eight".