878460038261155 has 32 divisors (see below), whose sum is σ = 1280949851013120. Its totient is φ = 564566786004480.

The previous prime is 878460038261041. The next prime is 878460038261209. The reversal of 878460038261155 is 551162830064878.

It is not a de Polignac number, because 878460038261155 - 2¹⁵ = 878460038228387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3088567891 + ... + 3088852300.

It is an arithmetic number, because the mean of its divisors is an integer number (40029682844160).

Almost surely, 2^{878460038261155} is an apocalyptic number.

878460038261155 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

878460038261155 is a deficient number, since it is larger than the sum of its proper divisors (402489812751965).

878460038261155 is a wasteful number, since it uses less digits than its factorization.

878460038261155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6177420459.

The product of its (nonzero) digits is 77414400, while the sum is 64.

The spelling of 878460038261155 in words is "eight hundred seventy-eight trillion, four hundred sixty billion, thirty-eight million, two hundred sixty-one thousand, one hundred fifty-five".