63016726993 has 4 divisors (see below), whose sum is σ = 68745520368. Its totient is φ = 57287933620.

The previous prime is 63016726967. The next prime is 63016727003. The reversal of 63016726993 is 39962761036.

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 cyclic number.

It is not a de Polignac number, because 63016726993 - 2⁵ = 63016726961 is a prime.

It is a super-2 number, since 2×63016726993² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63016726993.

It is not an unprimeable number, because it can be changed into a prime (63016726093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2864396671 + ... + 2864396692.

It is an arithmetic number, because the mean of its divisors is an integer number (17186380092).

Almost surely, 2^63016726993 is an apocalyptic number.

It is an amenable number.

63016726993 is a deficient number, since it is larger than the sum of its proper divisors (5728793375).

63016726993 is a wasteful number, since it uses less digits than its factorization.

63016726993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728793374.

The product of its (nonzero) digits is 2204496, while the sum is 52.

The spelling of 63016726993 in words is "sixty-three billion, sixteen million, seven hundred twenty-six thousand, nine hundred ninety-three".