470141977561 has 3 divisors (see below), whose sum is σ = 470142663231. Its totient is φ = 470141291892.

The previous prime is 470141977537. The next prime is 470141977597. The reversal of 470141977561 is 165779141074.

The square root of 470141977561 is 685669.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 25386367561 + 444755610000 = 159331^2 + 666900^2 .

It is a de Polignac number, because none of the positive numbers 2^k-470141977561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 470141977499 and 470141977508.

It is not an unprimeable number, because it can be changed into a prime (470141977961) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 342835 + ... + 1028503.

It is an arithmetic number, because the mean of its divisors is an integer number (156714221077).

Almost surely, 2^470141977561 is an apocalyptic number.

470141977561 is the 685669-th square number.

470141977561 is the 342835-th centered octagonal number.

It is an amenable number.

470141977561 is a deficient number, since it is larger than the sum of its proper divisors (685670).

470141977561 is an frugal number, since it uses more digits than its factorization.

470141977561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371338 (or 685669 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 52.

The spelling of 470141977561 in words is "four hundred seventy billion, one hundred forty-one million, nine hundred seventy-seven thousand, five hundred sixty-one".