1641880746418 has 16 divisors (see below), whose sum is σ = 2687328493056. Its totient is φ = 746138723440.

The previous prime is 1641880746287. The next prime is 1641880746449. The reversal of 1641880746418 is 8146470881461.

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, 8436946 + ... + 8629357.

It is an arithmetic number, because the mean of its divisors is an integer number (167958030816).

Almost surely, 2^{1641880746418} is an apocalyptic number.

1641880746418 is a deficient number, since it is larger than the sum of its proper divisors (1045447746638).

1641880746418 is a wasteful number, since it uses less digits than its factorization.

1641880746418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17070689.

The product of its (nonzero) digits is 8257536, while the sum is 58.

The spelling of 1641880746418 in words is "one trillion, six hundred forty-one billion, eight hundred eighty million, seven hundred forty-six thousand, four hundred eighteen".