80420848402 has 4 divisors (see below), whose sum is σ = 120631272606. Its totient is φ = 40210424200.

The previous prime is 80420848399. The next prime is 80420848411. The reversal of 80420848402 is 20484802408.

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., 50822742721 + 29598105681 = 225439^2 + 172041^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20105212099 + ... + 20105212102.

Almost surely, 2^80420848402 is an apocalyptic number.

80420848402 is a deficient number, since it is larger than the sum of its proper divisors (40210424204).

80420848402 is a wasteful number, since it uses less digits than its factorization.

80420848402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40210424203.

The product of its (nonzero) digits is 131072, while the sum is 40.

The spelling of 80420848402 in words is "eighty billion, four hundred twenty million, eight hundred forty-eight thousand, four hundred two".