1563742473650 has 48 divisors (see below), whose sum is σ = 3331249476864. Its totient is φ = 534982250880.

The previous prime is 1563742473641. The next prime is 1563742473679. The reversal of 1563742473650 is 563742473651.

It is a junction number, because it is equal to n+sod(n) for n = 1563742473592 and 1563742473601.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4662827 + ... + 4986926.

It is an arithmetic number, because the mean of its divisors is an integer number (69401030768).

Almost surely, 2^{1563742473650} is an apocalyptic number.

1563742473650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1563742473650 is an abundant number, since it is smaller than the sum of its proper divisors (1767507003214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1563742473650 is a wasteful number, since it uses less digits than its factorization.

1563742473650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9650235 (or 9650230 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 53.

Subtracting from 1563742473650 its reverse (563742473651), we obtain a palindrome (999999999999).

The spelling of 1563742473650 in words is "one trillion, five hundred sixty-three billion, seven hundred forty-two million, four hundred seventy-three thousand, six hundred fifty".