63782442725451 has 4 divisors (see below), whose sum is σ = 85043256967272. Its totient is φ = 42521628483632.

The previous prime is 63782442725401. The next prime is 63782442725473. The reversal of 63782442725451 is 15452724428736.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63782442725451 - 2²³ = 63782434336843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63782442725401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10630407120906 + ... + 10630407120911.

It is an arithmetic number, because the mean of its divisors is an integer number (21260814241818).

Almost surely, 2^{63782442725451} is an apocalyptic number.

63782442725451 is a deficient number, since it is larger than the sum of its proper divisors (21260814241821).

63782442725451 is a wasteful number, since it uses less digits than its factorization.

63782442725451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21260814241820.

The product of its digits is 90316800, while the sum is 60.

The spelling of 63782442725451 in words is "sixty-three trillion, seven hundred eighty-two billion, four hundred forty-two million, seven hundred twenty-five thousand, four hundred fifty-one".