197021743802 has 16 divisors (see below), whose sum is σ = 332103542400. Its totient is φ = 86979498672.

The previous prime is 197021743777. The next prime is 197021743819. The reversal of 197021743802 is 208347120791.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164733302 + ... + 164734497.

It is an arithmetic number, because the mean of its divisors is an integer number (20756471400).

Almost surely, 2^197021743802 is an apocalyptic number.

197021743802 is a deficient number, since it is larger than the sum of its proper divisors (135081798598).

197021743802 is a wasteful number, since it uses less digits than its factorization.

197021743802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329467837.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 197021743802 in words is "one hundred ninety-seven billion, twenty-one million, seven hundred forty-three thousand, eight hundred two".