80078299478 has 8 divisors (see below), whose sum is σ = 120125724168. Its totient is φ = 40036391424.

The previous prime is 80078299423. The next prime is 80078299513. The reversal of 80078299478 is 87499287008.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 80078299478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1342676 + ... + 1401047.

It is an arithmetic number, because the mean of its divisors is an integer number (15015715521).

Almost surely, 2^80078299478 is an apocalyptic number.

80078299478 is a deficient number, since it is larger than the sum of its proper divisors (40047424690).

80078299478 is a wasteful number, since it uses less digits than its factorization.

80078299478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758318.

The product of its (nonzero) digits is 16257024, while the sum is 62.

The spelling of 80078299478 in words is "eighty billion, seventy-eight million, two hundred ninety-nine thousand, four hundred seventy-eight".