63766503423 has 40 divisors (see below), whose sum is σ = 108996277280. Its totient is φ = 36393779520.

The previous prime is 63766503373. The next prime is 63766503439. The reversal of 63766503423 is 32430566736.

63766503423 is a `hidden beast` number, since 63 + 7 + 66 + 503 + 4 + 23 = 666.

It is not a de Polignac number, because 63766503423 - 2¹³ = 63766495231 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 (63766503443) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 402213 + ... + 537873.

It is an arithmetic number, because the mean of its divisors is an integer number (2724906932).

Almost surely, 2^63766503423 is an apocalyptic number.

63766503423 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

63766503423 is a deficient number, since it is larger than the sum of its proper divisors (45229773857).

63766503423 is a wasteful number, since it uses less digits than its factorization.

63766503423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136509 (or 136500 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 45.

The spelling of 63766503423 in words is "sixty-three billion, seven hundred sixty-six million, five hundred three thousand, four hundred twenty-three".