46945422721 has 2 divisors, whose sum is σ = 46945422722. Its totient is φ = 46945422720.

The previous prime is 46945422697. The next prime is 46945422743. The reversal of 46945422721 is 12722454964.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45386041600 + 1559381121 = 213040^2 + 39489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46945422721 is a prime.

It is not a weakly prime, because it can be changed into another prime (46940422721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23472711360 + 23472711361.

It is an arithmetic number, because the mean of its divisors is an integer number (23472711361).

Almost surely, 2^46945422721 is an apocalyptic number.

It is an amenable number.

46945422721 is a deficient number, since it is larger than the sum of its proper divisors (1).

46945422721 is an equidigital number, since it uses as much as digits as its factorization.

46945422721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 46.

The spelling of 46945422721 in words is "forty-six billion, nine hundred forty-five million, four hundred twenty-two thousand, seven hundred twenty-one".