63464646436 has 48 divisors (see below), whose sum is σ = 116194760640. Its totient is φ = 30291811200.

The previous prime is 63464646403. The next prime is 63464646437.

It is a happy number.

63464646436 is nontrivially palindromic in base 10.

63464646436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63464646436² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63464646437) 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, 9217051 + ... + 9223933.

It is an arithmetic number, because the mean of its divisors is an integer number (2420724180).

Almost surely, 2^63464646436 is an apocalyptic number.

It is an amenable number.

63464646436 is a deficient number, since it is larger than the sum of its proper divisors (52730114204).

63464646436 is a wasteful number, since it uses less digits than its factorization.

63464646436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7804 (or 7802 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 52.

The spelling of 63464646436 in words is "sixty-three billion, four hundred sixty-four million, six hundred forty-six thousand, four hundred thirty-six".