63396605951 has 4 divisors (see below), whose sum is σ = 72453263952. Its totient is φ = 54339947952.

The previous prime is 63396605941. The next prime is 63396605959. The reversal of 63396605951 is 15950669336.

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 63396605951 - 2¹⁸ = 63396343807 is a prime.

It is a super-2 number, since 2×63396605951² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63396605893 and 63396605902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63396605959) 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, 4528328990 + ... + 4528329003.

It is an arithmetic number, because the mean of its divisors is an integer number (18113315988).

Almost surely, 2^63396605951 is an apocalyptic number.

63396605951 is a deficient number, since it is larger than the sum of its proper divisors (9056658001).

63396605951 is an equidigital number, since it uses as much as digits as its factorization.

63396605951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9056658000.

The product of its (nonzero) digits is 3936600, while the sum is 53.

The spelling of 63396605951 in words is "sixty-three billion, three hundred ninety-six million, six hundred five thousand, nine hundred fifty-one".