472776367477 has 2 divisors, whose sum is σ = 472776367478. Its totient is φ = 472776367476.

The previous prime is 472776367447. The next prime is 472776367523. The reversal of 472776367477 is 774763677274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 363356989681 + 109419377796 = 602791^2 + 330786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472776367477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472776367447) 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 as a sum of consecutive naturals, namely, 236388183738 + 236388183739.

It is an arithmetic number, because the mean of its divisors is an integer number (236388183739).

Almost surely, 2^472776367477 is an apocalyptic number.

It is an amenable number.

472776367477 is a deficient number, since it is larger than the sum of its proper divisors (1).

472776367477 is an equidigital number, since it uses as much as digits as its factorization.

472776367477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 406594944, while the sum is 67.

The spelling of 472776367477 in words is "four hundred seventy-two billion, seven hundred seventy-six million, three hundred sixty-seven thousand, four hundred seventy-seven".