1641931840049 has 8 divisors (see below), whose sum is σ = 1646270023680. Its totient is φ = 1637593923616.

The previous prime is 1641931839967. The next prime is 1641931840117. The reversal of 1641931840049 is 9400481391461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1641931840049 - 2¹² = 1641931835953 is a prime.

It is a super-3 number, since 3×1641931840049³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1641931839979 and 1641931840006.

It is not an unprimeable number, because it can be changed into a prime (1641931840349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20786972 + ... + 20865810.

It is an arithmetic number, because the mean of its divisors is an integer number (205783752960).

Almost surely, 2^{1641931840049} is an apocalyptic number.

It is an amenable number.

1641931840049 is a deficient number, since it is larger than the sum of its proper divisors (4338183631).

1641931840049 is an equidigital number, since it uses as much as digits as its factorization.

1641931840049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133599.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 1641931840049 in words is "one trillion, six hundred forty-one billion, nine hundred thirty-one million, eight hundred forty thousand, forty-nine".