280878087115 has 8 divisors (see below), whose sum is σ = 337316419728. Its totient is φ = 224527326240.

The previous prime is 280878087109. The next prime is 280878087121. The reversal of 280878087115 is 511780878082.

It is an interprime number because it is at equal distance from previous prime (280878087109) and next prime (280878087121).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 280878087115 - 2²⁹ = 280341216203 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21885876 + ... + 21898705.

It is an arithmetic number, because the mean of its divisors is an integer number (42164552466).

Almost surely, 2^280878087115 is an apocalyptic number.

280878087115 is a deficient number, since it is larger than the sum of its proper divisors (56438332613).

280878087115 is a wasteful number, since it uses less digits than its factorization.

280878087115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43785869.

The product of its (nonzero) digits is 2007040, while the sum is 55.

The spelling of 280878087115 in words is "two hundred eighty billion, eight hundred seventy-eight million, eighty-seven thousand, one hundred fifteen".