63459719409 has 16 divisors (see below), whose sum is σ = 86656578624. Its totient is φ = 41295259200.

The previous prime is 63459719399. The next prime is 63459719417. The reversal of 63459719409 is 90491795436.

It is not a de Polignac number, because 63459719409 - 2⁵ = 63459719377 is a prime.

It is a super-2 number, since 2×63459719409² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63459718409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1299594 + ... + 1347539.

It is an arithmetic number, because the mean of its divisors is an integer number (5416036164).

Almost surely, 2^63459719409 is an apocalyptic number.

It is an amenable number.

63459719409 is a deficient number, since it is larger than the sum of its proper divisors (23196859215).

63459719409 is a wasteful number, since it uses less digits than its factorization.

63459719409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647328.

The product of its (nonzero) digits is 7348320, while the sum is 57.

The spelling of 63459719409 in words is "sixty-three billion, four hundred fifty-nine million, seven hundred nineteen thousand, four hundred nine".