63061006917 has 4 divisors (see below), whose sum is σ = 84081342560. Its totient is φ = 42040671276.

The previous prime is 63061006913. The next prime is 63061006927. The reversal of 63061006917 is 71960016036.

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 not a de Polignac number, because 63061006917 - 2² = 63061006913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63061006913) 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, 10510167817 + ... + 10510167822.

It is an arithmetic number, because the mean of its divisors is an integer number (21020335640).

Almost surely, 2^63061006917 is an apocalyptic number.

It is an amenable number.

63061006917 is a deficient number, since it is larger than the sum of its proper divisors (21020335643).

63061006917 is a wasteful number, since it uses less digits than its factorization.

63061006917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21020335642.

The product of its (nonzero) digits is 40824, while the sum is 39.

The spelling of 63061006917 in words is "sixty-three billion, sixty-one million, six thousand, nine hundred seventeen".