80918387069 has 8 divisors (see below), whose sum is σ = 87152688000. Its totient is φ = 74685487536.

The previous prime is 80918387059. The next prime is 80918387131. The reversal of 80918387069 is 96078381908.

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 80918387069 - 2³⁶ = 12198910333 is a prime.

It is a super-2 number, since 2×80918387069² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80918386999 and 80918387017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80918387029) 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, 228857 + ... + 462830.

It is an arithmetic number, because the mean of its divisors is an integer number (10894086000).

Almost surely, 2^80918387069 is an apocalyptic number.

It is an amenable number.

80918387069 is a deficient number, since it is larger than the sum of its proper divisors (6234300931).

80918387069 is a wasteful number, since it uses less digits than its factorization.

80918387069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700699.

The product of its (nonzero) digits is 5225472, while the sum is 59.

The spelling of 80918387069 in words is "eighty billion, nine hundred eighteen million, three hundred eighty-seven thousand, sixty-nine".