4897561688811 has 24 divisors (see below), whose sum is σ = 7729080765120. Its totient is φ = 2963715039600.

The previous prime is 4897561688807. The next prime is 4897561688821. The reversal of 4897561688811 is 1188861657984.

4897561688811 is a `hidden beast` number, since 48 + 9 + 7 + 561 + 6 + 8 + 8 + 8 + 11 = 666.

It is not a de Polignac number, because 4897561688811 - 2² = 4897561688807 is a prime.

It is a super-2 number, since 2×4897561688811² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4897561688811.

It is not an unprimeable number, because it can be changed into a prime (4897561688821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37469145 + ... + 37599626.

It is an arithmetic number, because the mean of its divisors is an integer number (322045031880).

Almost surely, 2^{4897561688811} is an apocalyptic number.

4897561688811 is a deficient number, since it is larger than the sum of its proper divisors (2831519076309).

4897561688811 is a wasteful number, since it uses less digits than its factorization.

4897561688811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75069447 (or 75069444 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 72.

The spelling of 4897561688811 in words is "four trillion, eight hundred ninety-seven billion, five hundred sixty-one million, six hundred eighty-eight thousand, eight hundred eleven".