80878548812 has 48 divisors (see below), whose sum is σ = 154812252672. Its totient is φ = 36859912320.

The previous prime is 80878548727. The next prime is 80878548823. The reversal of 80878548812 is 21884587808.

It is a super-2 number, since 2×80878548812² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

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, 87128 + ... + 411519.

It is an arithmetic number, because the mean of its divisors is an integer number (3225255264).

Almost surely, 2^80878548812 is an apocalyptic number.

80878548812 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

80878548812 is a deficient number, since it is larger than the sum of its proper divisors (73933703860).

80878548812 is a wasteful number, since it uses less digits than its factorization.

80878548812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498758 (or 498756 counting only the distinct ones).

The product of its (nonzero) digits is 9175040, while the sum is 59.

The spelling of 80878548812 in words is "eighty billion, eight hundred seventy-eight million, five hundred forty-eight thousand, eight hundred twelve".