63953349852 has 72 divisors (see below), whose sum is σ = 181164344704. Its totient is φ = 17197532928.

The previous prime is 63953349833. The next prime is 63953349857. The reversal of 63953349852 is 25894335936.

It is a junction number, because it is equal to n+sod(n) for n = 63953349792 and 63953349801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63953349857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1292938 + ... + 1341489.

Almost surely, 2^63953349852 is an apocalyptic number.

It is an amenable number.

63953349852 is an abundant number, since it is smaller than the sum of its proper divisors (117210994852).

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

63953349852 is a wasteful number, since it uses less digits than its factorization.

63953349852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634475 (or 2634456 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 57.

The spelling of 63953349852 in words is "sixty-three billion, nine hundred fifty-three million, three hundred forty-nine thousand, eight hundred fifty-two".