878812861078 has 8 divisors (see below), whose sum is σ = 1318286926872. Its totient is φ = 439383885456.

The previous prime is 878812860923. The next prime is 878812861081. The reversal of 878812861078 is 870168218878.

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

It is a super-2 number, since 2×878812861078² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11223775 + ... + 11301802.

It is an arithmetic number, because the mean of its divisors is an integer number (164785865859).

Almost surely, 2^878812861078 is an apocalyptic number.

878812861078 is a deficient number, since it is larger than the sum of its proper divisors (439474065794).

878812861078 is a wasteful number, since it uses less digits than its factorization.

878812861078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22545086.

The product of its (nonzero) digits is 19267584, while the sum is 64.

The spelling of 878812861078 in words is "eight hundred seventy-eight billion, eight hundred twelve million, eight hundred sixty-one thousand, seventy-eight".