63706745053 has 4 divisors (see below), whose sum is σ = 72807708640. Its totient is φ = 54605781468.

The previous prime is 63706745041. The next prime is 63706745099. The reversal of 63706745053 is 35054760736.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-63706745053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63706744994 and 63706745012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63706743053) 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, 4550481783 + ... + 4550481796.

It is an arithmetic number, because the mean of its divisors is an integer number (18201927160).

Almost surely, 2^63706745053 is an apocalyptic number.

It is an amenable number.

63706745053 is a deficient number, since it is larger than the sum of its proper divisors (9100963587).

63706745053 is an equidigital number, since it uses as much as digits as its factorization.

63706745053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9100963586.

The product of its (nonzero) digits is 1587600, while the sum is 46.

The spelling of 63706745053 in words is "sixty-three billion, seven hundred six million, seven hundred forty-five thousand, fifty-three".