46257261221 has 2 divisors, whose sum is σ = 46257261222. Its totient is φ = 46257261220.

The previous prime is 46257261107. The next prime is 46257261229. The reversal of 46257261221 is 12216275264.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45467032900 + 790228321 = 213230^2 + 28111^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46257261221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46257261229) 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, 23128630610 + 23128630611.

It is an arithmetic number, because the mean of its divisors is an integer number (23128630611).

Almost surely, 2^46257261221 is an apocalyptic number.

It is an amenable number.

46257261221 is a deficient number, since it is larger than the sum of its proper divisors (1).

46257261221 is an equidigital number, since it uses as much as digits as its factorization.

46257261221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 38.

The spelling of 46257261221 in words is "forty-six billion, two hundred fifty-seven million, two hundred sixty-one thousand, two hundred twenty-one".