670736704878 has 48 divisors (see below), whose sum is σ = 1483854527376. Its totient is φ = 218890563840.

The previous prime is 670736704873. The next prime is 670736704943. The reversal of 670736704878 is 878407637076.

670736704878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670736704873) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307243 + ... + 1198278.

It is an arithmetic number, because the mean of its divisors is an integer number (30913635987).

Almost surely, 2^670736704878 is an apocalyptic number.

670736704878 is an abundant number, since it is smaller than the sum of its proper divisors (813117822498).

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

670736704878 is a wasteful number, since it uses less digits than its factorization.

670736704878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506049 (or 1506046 counting only the distinct ones).

The product of its (nonzero) digits is 66382848, while the sum is 63.

The spelling of 670736704878 in words is "six hundred seventy billion, seven hundred thirty-six million, seven hundred four thousand, eight hundred seventy-eight".