80278978610 has 32 divisors (see below), whose sum is σ = 145043979264. Its totient is φ = 31991400000.

The previous prime is 80278978609. The next prime is 80278978627. The reversal of 80278978610 is 1687987208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3149015 + ... + 3174405.

It is an arithmetic number, because the mean of its divisors is an integer number (4532624352).

Almost surely, 2^80278978610 is an apocalyptic number.

80278978610 is a deficient number, since it is larger than the sum of its proper divisors (64765000654).

80278978610 is a wasteful number, since it uses less digits than its factorization.

80278978610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26570.

The product of its (nonzero) digits is 2709504, while the sum is 56.

The spelling of 80278978610 in words is "eighty billion, two hundred seventy-eight million, nine hundred seventy-eight thousand, six hundred ten".