63921470049 has 12 divisors (see below), whose sum is σ = 92995266000. Its totient is φ = 42307734744.

The previous prime is 63921470029. The next prime is 63921470059. The reversal of 63921470049 is 94007412936.

It is a happy number.

63921470049 is a `hidden beast` number, since 639 + 2 + 1 + 4 + 7 + 0 + 0 + 4 + 9 = 666.

It is not a de Polignac number, because 63921470049 - 2⁷ = 63921469921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63921469986 and 63921470013.

It is not an unprimeable number, because it can be changed into a prime (63921470029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25546899 + ... + 25549400.

It is an arithmetic number, because the mean of its divisors is an integer number (7749605500).

Almost surely, 2^63921470049 is an apocalyptic number.

It is an amenable number.

63921470049 is a deficient number, since it is larger than the sum of its proper divisors (29073795951).

63921470049 is a wasteful number, since it uses less digits than its factorization.

63921470049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51096444 (or 51096441 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 63921470049 in words is "sixty-three billion, nine hundred twenty-one million, four hundred seventy thousand, forty-nine".