19725280521063 has 16 divisors (see below), whose sum is σ = 28857885003360. Its totient is φ = 11909603332224.

The previous prime is 19725280521053. The next prime is 19725280521077. The reversal of 19725280521063 is 36012508252791.

It is not a de Polignac number, because 19725280521063 - 2⁵ = 19725280521031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19725280520997 and 19725280521015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19725280521013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4771473628 + ... + 4771477761.

It is an arithmetic number, because the mean of its divisors is an integer number (1803617812710).

Almost surely, 2^{19725280521063} is an apocalyptic number.

19725280521063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

19725280521063 is a deficient number, since it is larger than the sum of its proper divisors (9132604482297).

19725280521063 is a wasteful number, since it uses less digits than its factorization.

19725280521063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9542951458.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 19725280521063 in words is "nineteen trillion, seven hundred twenty-five billion, two hundred eighty million, five hundred twenty-one thousand, sixty-three".