63768545 has 8 divisors (see below), whose sum is σ = 76567680. Its totient is φ = 50984560.

The previous prime is 63768517. The next prime is 63768569. The reversal of 63768545 is 54586736.

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

It is not a de Polignac number, because 63768545 - 2²² = 59574241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63768496 and 63768505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10136 + ... + 15174.

It is an arithmetic number, because the mean of its divisors is an integer number (9570960).

Almost surely, 2^63768545 is an apocalyptic number.

It is an amenable number.

63768545 is a deficient number, since it is larger than the sum of its proper divisors (12799135).

63768545 is a wasteful number, since it uses less digits than its factorization.

63768545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575.

The product of its digits is 604800, while the sum is 44.

The square root of 63768545 is about 7985.5209598372. The cubic root of 63768545 is about 399.5172196255.

The spelling of 63768545 in words is "sixty-three million, seven hundred sixty-eight thousand, five hundred forty-five".