80257557835 has 32 divisors (see below), whose sum is σ = 118653800832. Its totient is φ = 50749148160.

The previous prime is 80257557833. The next prime is 80257557839. The reversal of 80257557835 is 53875575208.

It is not a de Polignac number, because 80257557835 - 2¹ = 80257557833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80257557833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365175 + ... + 542095.

It is an arithmetic number, because the mean of its divisors is an integer number (3707931276).

Almost surely, 2^80257557835 is an apocalyptic number.

80257557835 is a deficient number, since it is larger than the sum of its proper divisors (38396242997).

80257557835 is a wasteful number, since it uses less digits than its factorization.

80257557835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177943.

The product of its (nonzero) digits is 11760000, while the sum is 55.

The spelling of 80257557835 in words is "eighty billion, two hundred fifty-seven million, five hundred fifty-seven thousand, eight hundred thirty-five".