80726123497 has 8 divisors (see below), whose sum is σ = 81016030656. Its totient is φ = 80436438672.

The previous prime is 80726123461. The next prime is 80726123503. The reversal of 80726123497 is 79432162708.

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 80726123497 - 2⁷ = 80726123369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80726123497.

It is not an unprimeable number, because it can be changed into a prime (80726123437) 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, 689748 + ... + 798250.

It is an arithmetic number, because the mean of its divisors is an integer number (10127003832).

Almost surely, 2^80726123497 is an apocalyptic number.

It is an amenable number.

80726123497 is a deficient number, since it is larger than the sum of its proper divisors (289907159).

80726123497 is a wasteful number, since it uses less digits than its factorization.

80726123497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111167.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 80726123497 in words is "eighty billion, seven hundred twenty-six million, one hundred twenty-three thousand, four hundred ninety-seven".