80438342866 has 24 divisors (see below), whose sum is σ = 140682427776. Its totient is φ = 34393572360.

The previous prime is 80438342861. The next prime is 80438342903. The reversal of 80438342866 is 66824383408.

It is not an unprimeable number, because it can be changed into a prime (80438342861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 909966 + ... + 994441.

It is an arithmetic number, because the mean of its divisors is an integer number (5861767824).

Almost surely, 2^80438342866 is an apocalyptic number.

80438342866 is a deficient number, since it is larger than the sum of its proper divisors (60244084910).

80438342866 is a wasteful number, since it uses less digits than its factorization.

80438342866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904854 (or 1904847 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 52.

The spelling of 80438342866 in words is "eighty billion, four hundred thirty-eight million, three hundred forty-two thousand, eight hundred sixty-six".