46778282861 has 2 divisors, whose sum is σ = 46778282862. Its totient is φ = 46778282860.

The previous prime is 46778282821. The next prime is 46778282893. The reversal of 46778282861 is 16828287764.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46772280361 + 6002500 = 216269^2 + 2450^2 .

It is a cyclic number.

It is not a de Polignac number, because 46778282861 - 2¹⁴ = 46778266477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 46778282861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46778282821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23389141430 + 23389141431.

It is an arithmetic number, because the mean of its divisors is an integer number (23389141431).

Almost surely, 2^46778282861 is an apocalyptic number.

It is an amenable number.

46778282861 is a deficient number, since it is larger than the sum of its proper divisors (1).

46778282861 is an equidigital number, since it uses as much as digits as its factorization.

46778282861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14450688, while the sum is 59.

The spelling of 46778282861 in words is "forty-six billion, seven hundred seventy-eight million, two hundred eighty-two thousand, eight hundred sixty-one".