80135257123 has 8 divisors (see below), whose sum is σ = 81810592560. Its totient is φ = 78470492160.

The previous prime is 80135257093. The next prime is 80135257127. The reversal of 80135257123 is 32175253108.

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 80135257123 - 2⁵ = 80135257091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80135257127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2627298 + ... + 2657623.

It is an arithmetic number, because the mean of its divisors is an integer number (10226324070).

Almost surely, 2^80135257123 is an apocalyptic number.

80135257123 is a deficient number, since it is larger than the sum of its proper divisors (1675335437).

80135257123 is a wasteful number, since it uses less digits than its factorization.

80135257123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5285237.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 80135257123 in words is "eighty billion, one hundred thirty-five million, two hundred fifty-seven thousand, one hundred twenty-three".