671082852078 has 24 divisors (see below), whose sum is σ = 1500916487616. Its totient is φ = 216478339200.

The previous prime is 671082852073. The next prime is 671082852101. The reversal of 671082852078 is 870258280176.

671082852078 is a `hidden beast` number, since 6 + 7 + 108 + 2 + 8 + 520 + 7 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671082852073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 601328163 + ... + 601329278.

It is an arithmetic number, because the mean of its divisors is an integer number (62538186984).

Almost surely, 2^671082852078 is an apocalyptic number.

671082852078 is an abundant number, since it is smaller than the sum of its proper divisors (829833635538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671082852078 is a wasteful number, since it uses less digits than its factorization.

671082852078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202657480 (or 1202657477 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 54.

The spelling of 671082852078 in words is "six hundred seventy-one billion, eighty-two million, eight hundred fifty-two thousand, seventy-eight".