842561475 has 48 divisors (see below), whose sum is σ = 1602873600. Its totient is φ = 382550400.

The previous prime is 842561459. The next prime is 842561509. The reversal of 842561475 is 574165248.

It is a happy number.

It is not a de Polignac number, because 842561475 - 2⁴ = 842561459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72840 + ... + 83610.

It is an arithmetic number, because the mean of its divisors is an integer number (33393200).

Almost surely, 2^842561475 is an apocalyptic number.

842561475 is a deficient number, since it is larger than the sum of its proper divisors (760312125).

842561475 is a wasteful number, since it uses less digits than its factorization.

842561475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10940 (or 10935 counting only the distinct ones).

The product of its digits is 268800, while the sum is 42.

The square root of 842561475 is about 29026.9094979124. The cubic root of 842561475 is about 944.4968907310.

The spelling of 842561475 in words is "eight hundred forty-two million, five hundred sixty-one thousand, four hundred seventy-five".