63457475437 has 2 divisors, whose sum is σ = 63457475438. Its totient is φ = 63457475436.

The previous prime is 63457475401. The next prime is 63457475483. The reversal of 63457475437 is 73457475436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60962572836 + 2494902601 = 246906^2 + 49949^2 .

It is a cyclic number.

It is not a de Polignac number, because 63457475437 - 2⁷ = 63457475309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63457455437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31728737718 + 31728737719.

It is an arithmetic number, because the mean of its divisors is an integer number (31728737719).

Almost surely, 2^63457475437 is an apocalyptic number.

It is an amenable number.

63457475437 is a deficient number, since it is larger than the sum of its proper divisors (1).

63457475437 is an equidigital number, since it uses as much as digits as its factorization.

63457475437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29635200, while the sum is 55.

Subtracting 63457475437 from its reverse (73457475436), we obtain a palindrome (9999999999).

The spelling of 63457475437 in words is "sixty-three billion, four hundred fifty-seven million, four hundred seventy-five thousand, four hundred thirty-seven".