80377343544 has 96 divisors (see below), whose sum is σ = 220820065200. Its totient is φ = 24346828800.

The previous prime is 80377343539. The next prime is 80377343567. The reversal of 80377343544 is 44534377308.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80377343493 and 80377343502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1344 + ... + 400944.

Almost surely, 2^80377343544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80377343544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110410032600).

80377343544 is an abundant number, since it is smaller than the sum of its proper divisors (140442721656).

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

80377343544 is a wasteful number, since it uses less digits than its factorization.

80377343544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399673 (or 399652 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 48.

The spelling of 80377343544 in words is "eighty billion, three hundred seventy-seven million, three hundred forty-three thousand, five hundred forty-four".