63436436428 has 48 divisors (see below), whose sum is σ = 125577406080. Its totient is φ = 27859113216.

The previous prime is 63436436359. The next prime is 63436436443. The reversal of 63436436428 is 82463463436.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 279850 + ... + 452977.

It is an arithmetic number, because the mean of its divisors is an integer number (2616195960).

Almost surely, 2^63436436428 is an apocalyptic number.

63436436428 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

63436436428 is a deficient number, since it is larger than the sum of its proper divisors (62140969652).

63436436428 is a wasteful number, since it uses less digits than its factorization.

63436436428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732934 (or 732932 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 49.

It can be divided in two parts, 6343 and 6436428, that multiplied together give a palindrome (40826262804).

The spelling of 63436436428 in words is "sixty-three billion, four hundred thirty-six million, four hundred thirty-six thousand, four hundred twenty-eight".