878776405043081 has 8 divisors (see below), whose sum is σ = 902620829693184. Its totient is φ = 854936912550960.

The previous prime is 878776405043077. The next prime is 878776405043087. The reversal of 878776405043081 is 180340504677878.

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

It is a cyclic number.

It is not a de Polignac number, because 878776405043081 - 2² = 878776405043077 is a prime.

It is a super-2 number, since 2×878776405043081² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878776405043087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1232678315 + ... + 1233391008.

It is an arithmetic number, because the mean of its divisors is an integer number (112827603711648).

Almost surely, 2^{878776405043081} is an apocalyptic number.

It is an amenable number.

878776405043081 is a deficient number, since it is larger than the sum of its proper divisors (23844424650103).

878776405043081 is a wasteful number, since it uses less digits than its factorization.

878776405043081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466078991.

The product of its (nonzero) digits is 252887040, while the sum is 68.

The spelling of 878776405043081 in words is "eight hundred seventy-eight trillion, seven hundred seventy-six billion, four hundred five million, forty-three thousand, eighty-one".