463713651421 has 4 divisors (see below), whose sum is σ = 490990925052. Its totient is φ = 436436377792.

The previous prime is 463713651403. The next prime is 463713651433. The reversal of 463713651421 is 124156317364.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 422778245796 + 40935405625 = 650214^2 + 202325^2 .

It is a cyclic number.

It is not a de Polignac number, because 463713651421 - 2⁵ = 463713651389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (463713651451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13638636790 + ... + 13638636823.

It is an arithmetic number, because the mean of its divisors is an integer number (122747731263).

Almost surely, 2^463713651421 is an apocalyptic number.

It is an amenable number.

463713651421 is a deficient number, since it is larger than the sum of its proper divisors (27277273631).

463713651421 is a wasteful number, since it uses less digits than its factorization.

463713651421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27277273630.

The product of its digits is 362880, while the sum is 43.

Adding to 463713651421 its reverse (124156317364), we get a palindrome (587869968785).

The spelling of 463713651421 in words is "four hundred sixty-three billion, seven hundred thirteen million, six hundred fifty-one thousand, four hundred twenty-one".