48972228561 has 16 divisors (see below), whose sum is σ = 72577011520. Its totient is φ = 32636649600.

The previous prime is 48972228527. The next prime is 48972228563. The reversal of 48972228561 is 16582227984.

48972228561 is a `hidden beast` number, since 4 + 8 + 9 + 72 + 2 + 2 + 8 + 561 = 666.

It is not a de Polignac number, because 48972228561 - 2¹⁰ = 48972227537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48972228498 and 48972228507.

It is not an unprimeable number, because it can be changed into a prime (48972228563) 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, 241120 + ... + 395073.

It is an arithmetic number, because the mean of its divisors is an integer number (4536063220).

Almost surely, 2^48972228561 is an apocalyptic number.

It is an amenable number.

48972228561 is a deficient number, since it is larger than the sum of its proper divisors (23604782959).

48972228561 is a wasteful number, since it uses less digits than its factorization.

48972228561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639053 (or 639047 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 48972228561 in words is "forty-eight billion, nine hundred seventy-two million, two hundred twenty-eight thousand, five hundred sixty-one".