1172575475397 has 24 divisors (see below), whose sum is σ = 1785244799520. Its totient is φ = 768901941360.

The previous prime is 1172575475389. The next prime is 1172575475413. The reversal of 1172575475397 is 7935745752711.

It is a happy number.

1172575475397 is a `hidden beast` number, since 1 + 1 + 7 + 2 + 5 + 75 + 475 + 3 + 97 = 666.

It is not a de Polignac number, because 1172575475397 - 2³ = 1172575475389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172575475347) 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, 39537747 + ... + 39567392.

It is an arithmetic number, because the mean of its divisors is an integer number (74385199980).

Almost surely, 2^{1172575475397} is an apocalyptic number.

It is an amenable number.

1172575475397 is a deficient number, since it is larger than the sum of its proper divisors (612669324123).

1172575475397 is an frugal number, since it uses more digits than its factorization.

1172575475397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79105215 (or 79105203 counting only the distinct ones).

The product of its digits is 64827000, while the sum is 63.

The spelling of 1172575475397 in words is "one trillion, one hundred seventy-two billion, five hundred seventy-five million, four hundred seventy-five thousand, three hundred ninety-seven".