63726504963 has 32 divisors (see below), whose sum is σ = 103311210240. Its totient is φ = 34437058560.

The previous prime is 63726504943. The next prime is 63726504971. The reversal of 63726504963 is 36940562736.

It is a happy number.

It is not a de Polignac number, because 63726504963 - 2⁵ = 63726504931 is a prime.

It is a super-2 number, since 2×63726504963² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (63726504943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2978670 + ... + 2999987.

It is an arithmetic number, because the mean of its divisors is an integer number (3228475320).

Almost surely, 2^63726504963 is an apocalyptic number.

63726504963 is a deficient number, since it is larger than the sum of its proper divisors (39584705277).

63726504963 is a wasteful number, since it uses less digits than its factorization.

63726504963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5978707.

The product of its (nonzero) digits is 4898880, while the sum is 51.

The spelling of 63726504963 in words is "sixty-three billion, seven hundred twenty-six million, five hundred four thousand, nine hundred sixty-three".