80726763264 has 144 divisors (see below), whose sum is σ = 247016974848. Its totient is φ = 22926422016.

The previous prime is 80726763253. The next prime is 80726763283. The reversal of 80726763264 is 46236762708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 852834 + ... + 942750.

Almost surely, 2^80726763264 is an apocalyptic number.

80726763264 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80726763264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123508487424).

80726763264 is an abundant number, since it is smaller than the sum of its proper divisors (166290211584).

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

80726763264 is a wasteful number, since it uses less digits than its factorization.

80726763264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90110 (or 90096 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 51.

The spelling of 80726763264 in words is "eighty billion, seven hundred twenty-six million, seven hundred sixty-three thousand, two hundred sixty-four".