63472346149 has 2 divisors, whose sum is σ = 63472346150. Its totient is φ = 63472346148.

The previous prime is 63472346141. The next prime is 63472346177. The reversal of 63472346149 is 94164327436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61814390625 + 1657955524 = 248625^2 + 40718^2 .

It is a cyclic number.

It is not a de Polignac number, because 63472346149 - 2³ = 63472346141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63472346141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31736173074 + 31736173075.

It is an arithmetic number, because the mean of its divisors is an integer number (31736173075).

Almost surely, 2^63472346149 is an apocalyptic number.

It is an amenable number.

63472346149 is a deficient number, since it is larger than the sum of its proper divisors (1).

63472346149 is an equidigital number, since it uses as much as digits as its factorization.

63472346149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 49.

The spelling of 63472346149 in words is "sixty-three billion, four hundred seventy-two million, three hundred forty-six thousand, one hundred forty-nine".