636442062460051 has 8 divisors (see below), whose sum is σ = 674931125439504. Its totient is φ = 598069809991680.

The previous prime is 636442062459989. The next prime is 636442062460079. The reversal of 636442062460051 is 150064260244636.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 636442062460051 - 2²³ = 636442054071443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 636442062459977 and 636442062460004.

It is not an unprimeable number, because it can be changed into a prime (636442062464051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29202616545 + ... + 29202638338.

It is an arithmetic number, because the mean of its divisors is an integer number (84366390679938).

Almost surely, 2^{636442062460051} is an apocalyptic number.

636442062460051 is a deficient number, since it is larger than the sum of its proper divisors (38489062979453).

636442062460051 is a wasteful number, since it uses less digits than its factorization.

636442062460051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58405255541.

The product of its (nonzero) digits is 4976640, while the sum is 49.

The spelling of 636442062460051 in words is "six hundred thirty-six trillion, four hundred forty-two billion, sixty-two million, four hundred sixty thousand, fifty-one".