80602945919 has 4 divisors (see below), whose sum is σ = 81385498896. Its totient is φ = 79820392944.

The previous prime is 80602945901. The next prime is 80602945931. The reversal of 80602945919 is 91954920608.

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

It is a cyclic number.

It is not a de Polignac number, because 80602945919 - 2¹⁶ = 80602880383 is a prime.

It is a super-2 number, since 2×80602945919² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80602945219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391276334 + ... + 391276539.

It is an arithmetic number, because the mean of its divisors is an integer number (20346374724).

Almost surely, 2^80602945919 is an apocalyptic number.

80602945919 is a deficient number, since it is larger than the sum of its proper divisors (782552977).

80602945919 is a wasteful number, since it uses less digits than its factorization.

80602945919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782552976.

The product of its (nonzero) digits is 1399680, while the sum is 53.

The spelling of 80602945919 in words is "eighty billion, six hundred two million, nine hundred forty-five thousand, nine hundred nineteen".