80910917376 has 144 divisors (see below), whose sum is σ = 228218715648. Its totient is φ = 25360384000.

The previous prime is 80910917371. The next prime is 80910917389. The reversal of 80910917376 is 67371901908.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80910917371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18942121 + ... + 18946391.

It is an arithmetic number, because the mean of its divisors is an integer number (1584852192).

Almost surely, 2^80910917376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80910917376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114109357824).

80910917376 is an abundant number, since it is smaller than the sum of its proper divisors (147307798272).

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

80910917376 is a wasteful number, since it uses less digits than its factorization.

80910917376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5758 (or 5744 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 51.

The spelling of 80910917376 in words is "eighty billion, nine hundred ten million, nine hundred seventeen thousand, three hundred seventy-six".