80385728503 has 8 divisors (see below), whose sum is σ = 82339687872. Its totient is φ = 78441920256.

The previous prime is 80385728473. The next prime is 80385728543. The reversal of 80385728503 is 30582758308.

It is a happy number.

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 80385728503 - 2¹⁷ = 80385597431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80385728543) 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, 2521750 + ... + 2553427.

It is an arithmetic number, because the mean of its divisors is an integer number (10292460984).

Almost surely, 2^80385728503 is an apocalyptic number.

80385728503 is a deficient number, since it is larger than the sum of its proper divisors (1953959369).

80385728503 is a wasteful number, since it uses less digits than its factorization.

80385728503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5075561.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 80385728503 in words is "eighty billion, three hundred eighty-five million, seven hundred twenty-eight thousand, five hundred three".