461556051277 has 2 divisors, whose sum is σ = 461556051278. Its totient is φ = 461556051276.

The previous prime is 461556051263. The next prime is 461556051287. The reversal of 461556051277 is 772150655164.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345401868681 + 116154182596 = 587709^2 + 340814^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461556051277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 461556051277.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461556051247) 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, 230778025638 + 230778025639.

It is an arithmetic number, because the mean of its divisors is an integer number (230778025639).

Almost surely, 2^461556051277 is an apocalyptic number.

It is an amenable number.

461556051277 is a deficient number, since it is larger than the sum of its proper divisors (1).

461556051277 is an equidigital number, since it uses as much as digits as its factorization.

461556051277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764000, while the sum is 49.

The spelling of 461556051277 in words is "four hundred sixty-one billion, five hundred fifty-six million, fifty-one thousand, two hundred seventy-seven".