46438242547721 has 2 divisors, whose sum is σ = 46438242547722. Its totient is φ = 46438242547720.

The previous prime is 46438242547681. The next prime is 46438242547757. The reversal of 46438242547721 is 12774524283464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37027091130121 + 9411151417600 = 6084989^2 + 3067760^2 .

It is a cyclic number.

It is not a de Polignac number, because 46438242547721 - 2⁶ = 46438242547657 is a prime.

It is not a weakly prime, because it can be changed into another prime (46458242547721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23219121273860 + 23219121273861.

It is an arithmetic number, because the mean of its divisors is an integer number (23219121273861).

Almost surely, 2^{46438242547721} is an apocalyptic number.

It is an amenable number.

46438242547721 is a deficient number, since it is larger than the sum of its proper divisors (1).

46438242547721 is an equidigital number, since it uses as much as digits as its factorization.

46438242547721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72253440, while the sum is 59.

The spelling of 46438242547721 in words is "forty-six trillion, four hundred thirty-eight billion, two hundred forty-two million, five hundred forty-seven thousand, seven hundred twenty-one".