197388426770 has 16 divisors (see below), whose sum is σ = 355361202648. Its totient is φ = 78941585280.

The previous prime is 197388426769. The next prime is 197388426797. The reversal of 197388426770 is 77624883791.

197388426770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 118515636121 + 78872790649 = 344261^2 + 280843^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1662941 + ... + 1777680.

Almost surely, 2^197388426770 is an apocalyptic number.

197388426770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197388426770 is a deficient number, since it is larger than the sum of its proper divisors (157972775878).

197388426770 is a wasteful number, since it uses less digits than its factorization.

197388426770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3446365.

The product of its (nonzero) digits is 28449792, while the sum is 62.

The spelling of 197388426770 in words is "one hundred ninety-seven billion, three hundred eighty-eight million, four hundred twenty-six thousand, seven hundred seventy".