463640744451 has 8 divisors (see below), whose sum is σ = 645065383680. Its totient is φ = 295654967432.

The previous prime is 463640744407. The next prime is 463640744509. The reversal of 463640744451 is 154447046364.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 463640744451 - 2¹³ = 463640736259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 463640744451.

It is not an unprimeable number, because it can be changed into a prime (463640744351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3359715471 + ... + 3359715608.

It is an arithmetic number, because the mean of its divisors is an integer number (80633172960).

Almost surely, 2^463640744451 is an apocalyptic number.

463640744451 is a deficient number, since it is larger than the sum of its proper divisors (181424639229).

463640744451 is a wasteful number, since it uses less digits than its factorization.

463640744451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6719431105.

The product of its (nonzero) digits is 3870720, while the sum is 48.

The spelling of 463640744451 in words is "four hundred sixty-three billion, six hundred forty million, seven hundred forty-four thousand, four hundred fifty-one".