63477900247 has 2 divisors, whose sum is σ = 63477900248. Its totient is φ = 63477900246.

The previous prime is 63477900181. The next prime is 63477900301. The reversal of 63477900247 is 74200977436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63477900247 - 2²³ = 63469511639 is a prime.

It is a super-2 number, since 2×63477900247² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63477900247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63477900347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31738950123 + 31738950124.

It is an arithmetic number, because the mean of its divisors is an integer number (31738950124).

Almost surely, 2^63477900247 is an apocalyptic number.

63477900247 is a deficient number, since it is larger than the sum of its proper divisors (1).

63477900247 is an equidigital number, since it uses as much as digits as its factorization.

63477900247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1778112, while the sum is 49.

The spelling of 63477900247 in words is "sixty-three billion, four hundred seventy-seven million, nine hundred thousand, two hundred forty-seven".