63953399952 has 120 divisors (see below), whose sum is σ = 195463614528. Its totient is φ = 19400774400.

The previous prime is 63953399947. The next prime is 63953399957. The reversal of 63953399952 is 25999335936.

63953399952 is a `hidden beast` number, since 6 + 3 + 9 + 533 + 9 + 9 + 95 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (63953399947) and next prime (63953399957).

It is a self number, because there is not a number n which added to its sum of digits gives 63953399952.

It is not an unprimeable number, because it can be changed into a prime (63953399957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107674 + ... + 373497.

Almost surely, 2^63953399952 is an apocalyptic number.

It is an amenable number.

63953399952 is an abundant number, since it is smaller than the sum of its proper divisors (131510214576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63953399952 is a wasteful number, since it uses less digits than its factorization.

63953399952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481269 (or 481260 counting only the distinct ones).

The product of its digits is 53144100, while the sum is 63.

The spelling of 63953399952 in words is "sixty-three billion, nine hundred fifty-three million, three hundred ninety-nine thousand, nine hundred fifty-two".