80355429864 has 160 divisors (see below), whose sum is σ = 239646211200. Its totient is φ = 25068096000.

The previous prime is 80355429841. The next prime is 80355429937. The reversal of 80355429864 is 46892455308.

80355429864 is a `hidden beast` number, since 8 + 0 + 3 + 5 + 542 + 98 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 80355429864.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 1951489 + ... + 1992239.

It is an arithmetic number, because the mean of its divisors is an integer number (1497788820).

Almost surely, 2^80355429864 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 80355429864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119823105600).

80355429864 is an abundant number, since it is smaller than the sum of its proper divisors (159290781336).

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

80355429864 is a wasteful number, since it uses less digits than its factorization.

80355429864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40965 (or 40952 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 80355429864 in words is "eighty billion, three hundred fifty-five million, four hundred twenty-nine thousand, eight hundred sixty-four".