636450451412 has 12 divisors (see below), whose sum is σ = 1127886876480. Its totient is φ = 314197058136.

The previous prime is 636450451409. The next prime is 636450451453. The reversal of 636450451412 is 214154054636.

It is a self number, because there is not a number n which added to its sum of digits gives 636450451412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007041538 + ... + 1007042169.

It is an arithmetic number, because the mean of its divisors is an integer number (93990573040).

Almost surely, 2^636450451412 is an apocalyptic number.

It is an amenable number.

636450451412 is a deficient number, since it is larger than the sum of its proper divisors (491436425068).

636450451412 is a wasteful number, since it uses less digits than its factorization.

636450451412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014083790 (or 2014083788 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 636450451412 in words is "six hundred thirty-six billion, four hundred fifty million, four hundred fifty-one thousand, four hundred twelve".