80920651734 has 96 divisors (see below), whose sum is σ = 191788702560. Its totient is φ = 24509016576.

The previous prime is 80920651733. The next prime is 80920651741. The reversal of 80920651734 is 43715602908.

80920651734 is a `hidden beast` number, since 80 + 9 + 20 + 6 + 517 + 34 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 80920651734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80920651733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4718944 + ... + 4736060.

It is an arithmetic number, because the mean of its divisors is an integer number (1997798985).

It is a 1-persistent number, because it is pandigital, but 2⋅80920651734 = 161841303468 is not.

Almost surely, 2^80920651734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80920651734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95894351280).

80920651734 is an abundant number, since it is smaller than the sum of its proper divisors (110868050826).

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

80920651734 is a wasteful number, since it uses less digits than its factorization.

80920651734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17454 (or 17451 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 80920651734 in words is "eighty billion, nine hundred twenty million, six hundred fifty-one thousand, seven hundred thirty-four".