80367806378 has 4 divisors (see below), whose sum is σ = 120551709570. Its totient is φ = 40183903188.

The previous prime is 80367806377. The next prime is 80367806381. The reversal of 80367806378 is 87360876308.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57304220689 + 23063585689 = 239383^2 + 151867^2 .

It is not an unprimeable number, because it can be changed into a prime (80367806377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20091951593 + ... + 20091951596.

Almost surely, 2^80367806378 is an apocalyptic number.

80367806378 is a deficient number, since it is larger than the sum of its proper divisors (40183903192).

80367806378 is a wasteful number, since it uses less digits than its factorization.

80367806378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40183903191.

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 80367806378 in words is "eighty billion, three hundred sixty-seven million, eight hundred six thousand, three hundred seventy-eight".