80215690129 has 8 divisors (see below), whose sum is σ = 80977382208. Its totient is φ = 79454220720.

The previous prime is 80215690109. The next prime is 80215690193. The reversal of 80215690129 is 92109651208.

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 80215690129 - 2⁷ = 80215690001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80215690109) 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, 719139 + ... + 823159.

It is an arithmetic number, because the mean of its divisors is an integer number (10122172776).

Almost surely, 2^80215690129 is an apocalyptic number.

It is an amenable number.

80215690129 is a deficient number, since it is larger than the sum of its proper divisors (761692079).

80215690129 is a wasteful number, since it uses less digits than its factorization.

80215690129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111335.

The product of its (nonzero) digits is 77760, while the sum is 43.

The spelling of 80215690129 in words is "eighty billion, two hundred fifteen million, six hundred ninety thousand, one hundred twenty-nine".