678197195013 has 32 divisors (see below), whose sum is σ = 1006334904960. Its totient is φ = 403610054400.

The previous prime is 678197194973. The next prime is 678197195111. The reversal of 678197195013 is 310591791876.

It is a happy number.

It is not a de Polignac number, because 678197195013 - 2⁸ = 678197194757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678197195213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1832658 + ... + 2171411.

It is an arithmetic number, because the mean of its divisors is an integer number (31447965780).

Almost surely, 2^678197195013 is an apocalyptic number.

It is an amenable number.

678197195013 is a deficient number, since it is larger than the sum of its proper divisors (328137709947).

678197195013 is a wasteful number, since it uses less digits than its factorization.

678197195013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004229.

The product of its (nonzero) digits is 2857680, while the sum is 57.

The spelling of 678197195013 in words is "six hundred seventy-eight billion, one hundred ninety-seven million, one hundred ninety-five thousand, thirteen".