197611428957 has 16 divisors (see below), whose sum is σ = 275590739328. Its totient is φ = 125713748160.

The previous prime is 197611428929. The next prime is 197611428967. The reversal of 197611428957 is 759824116791.

It is not a de Polignac number, because 197611428957 - 2¹⁵ = 197611396189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197611428957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197611428907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3372298 + ... + 3430395.

It is an arithmetic number, because the mean of its divisors is an integer number (17224421208).

Almost surely, 2^197611428957 is an apocalyptic number.

It is an amenable number.

197611428957 is a deficient number, since it is larger than the sum of its proper divisors (77979310371).

197611428957 is a wasteful number, since it uses less digits than its factorization.

197611428957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6803140.

The product of its digits is 7620480, while the sum is 60.

The spelling of 197611428957 in words is "one hundred ninety-seven billion, six hundred eleven million, four hundred twenty-eight thousand, nine hundred fifty-seven".