472776817561 has 8 divisors (see below), whose sum is σ = 522351880704. Its totient is φ = 425620050240.

The previous prime is 472776817529. The next prime is 472776817609. The reversal of 472776817561 is 165718677274.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 472776817561 - 2⁵ = 472776817529 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 472776817561.

It is not an unprimeable number, because it can be changed into a prime (472776815561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604573545 + ... + 604574326.

It is an arithmetic number, because the mean of its divisors is an integer number (65293985088).

Almost surely, 2^472776817561 is an apocalyptic number.

It is an amenable number.

472776817561 is a deficient number, since it is larger than the sum of its proper divisors (49575063143).

472776817561 is a wasteful number, since it uses less digits than its factorization.

472776817561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209147911.

The product of its digits is 27659520, while the sum is 61.

The spelling of 472776817561 in words is "four hundred seventy-two billion, seven hundred seventy-six million, eight hundred seventeen thousand, five hundred sixty-one".