477326408261 has 4 divisors (see below), whose sum is σ = 477329915052. Its totient is φ = 477322901472.

The previous prime is 477326408249. The next prime is 477326408327. The reversal of 477326408261 is 162804623774.

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 384183030625 + 93143377636 = 619825^2 + 305194^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-477326408261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (477326408161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1540616 + ... + 1824321.

It is an arithmetic number, because the mean of its divisors is an integer number (119332478763).

Almost surely, 2^477326408261 is an apocalyptic number.

It is an amenable number.

477326408261 is a deficient number, since it is larger than the sum of its proper divisors (3506791).

477326408261 is a wasteful number, since it uses less digits than its factorization.

477326408261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506790.

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 477326408261 in words is "four hundred seventy-seven billion, three hundred twenty-six million, four hundred eight thousand, two hundred sixty-one".