636062736428 has 72 divisors (see below), whose sum is σ = 1415235507840. Its totient is φ = 248286850560.

The previous prime is 636062736383. The next prime is 636062736431. The reversal of 636062736428 is 824637260636.

It is a self number, because there is not a number n which added to its sum of digits gives 636062736428.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2975663 + ... + 3182246.

It is an arithmetic number, because the mean of its divisors is an integer number (19656048720).

Almost surely, 2^636062736428 is an apocalyptic number.

636062736428 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

636062736428 is an abundant number, since it is smaller than the sum of its proper divisors (779172771412).

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

636062736428 is a wasteful number, since it uses less digits than its factorization.

636062736428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6157975 (or 6157966 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 53.

The spelling of 636062736428 in words is "six hundred thirty-six billion, sixty-two million, seven hundred thirty-six thousand, four hundred twenty-eight".