1475674472561 has 4 divisors (see below), whose sum is σ = 1515557566452. Its totient is φ = 1435791378672.

The previous prime is 1475674472543. The next prime is 1475674472599. The reversal of 1475674472561 is 1652744765741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1314095395600 + 161579076961 = 1146340^2 + 401969^2 .

It is a cyclic number.

It is not a de Polignac number, because 1475674472561 - 2⁶ = 1475674472497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1475674472561.

It is not an unprimeable number, because it can be changed into a prime (1475673472561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19941546890 + ... + 19941546963.

It is an arithmetic number, because the mean of its divisors is an integer number (378889391613).

Almost surely, 2^{1475674472561} is an apocalyptic number.

It is an amenable number.

1475674472561 is a deficient number, since it is larger than the sum of its proper divisors (39883093891).

1475674472561 is an equidigital number, since it uses as much as digits as its factorization.

1475674472561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39883093890.

The product of its digits is 39513600, while the sum is 59.

The spelling of 1475674472561 in words is "one trillion, four hundred seventy-five billion, six hundred seventy-four million, four hundred seventy-two thousand, five hundred sixty-one".