80885378881544 has 16 divisors (see below), whose sum is σ = 151685083035600. Its totient is φ = 40436023405392.

The previous prime is 80885378881537. The next prime is 80885378881547. The reversal of 80885378881544 is 44518887358808.

It is not an unprimeable number, because it can be changed into a prime (80885378881547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833202854 + ... + 833299925.

It is an arithmetic number, because the mean of its divisors is an integer number (9480317689725).

Almost surely, 2^{80885378881544} is an apocalyptic number.

It is an amenable number.

80885378881544 is a deficient number, since it is larger than the sum of its proper divisors (70799704154056).

80885378881544 is a wasteful number, since it uses less digits than its factorization.

80885378881544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666508852 (or 1666508848 counting only the distinct ones).

The product of its (nonzero) digits is 2202009600, while the sum is 77.

The spelling of 80885378881544 in words is "eighty trillion, eight hundred eighty-five billion, three hundred seventy-eight million, eight hundred eighty-one thousand, five hundred forty-four".