46512962977781 has 2 divisors, whose sum is σ = 46512962977782. Its totient is φ = 46512962977780.

The previous prime is 46512962977669. The next prime is 46512962977783. The reversal of 46512962977781 is 18777926921564.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35240358176881 + 11272604800900 = 5936359^2 + 3357470^2 .

It is a cyclic number.

It is not a de Polignac number, because 46512962977781 - 2¹⁰ = 46512962976757 is a prime.

It is a super-2 number, since 2×46512962977781² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 46512962977783, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 46512962977699 and 46512962977708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46512962977783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23256481488890 + 23256481488891.

It is an arithmetic number, because the mean of its divisors is an integer number (23256481488891).

Almost surely, 2^{46512962977781} is an apocalyptic number.

It is an amenable number.

46512962977781 is a deficient number, since it is larger than the sum of its proper divisors (1).

46512962977781 is an equidigital number, since it uses as much as digits as its factorization.

46512962977781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 640120320, while the sum is 74.

The spelling of 46512962977781 in words is "forty-six trillion, five hundred twelve billion, nine hundred sixty-two million, nine hundred seventy-seven thousand, seven hundred eighty-one".