4895911561 has 6 divisors (see below), whose sum is σ = 5058939786. Its totient is φ = 4737978000.

The previous prime is 4895911547. The next prime is 4895911577. The reversal of 4895911561 is 1651195984.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3465559161 + 1430352400 = 58869^2 + 37820^2 .

It is not a de Polignac number, because 4895911561 - 2⁵ = 4895911529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4895911541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2546340 + ... + 2548261.

It is an arithmetic number, because the mean of its divisors is an integer number (843156631).

Almost surely, 2^4895911561 is an apocalyptic number.

It is an amenable number.

4895911561 is a deficient number, since it is larger than the sum of its proper divisors (163028225).

4895911561 is an equidigital number, since it uses as much as digits as its factorization.

4895911561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5094663 (or 5094632 counting only the distinct ones).

The product of its digits is 388800, while the sum is 49.

The square root of 4895911561 is about 69970.7907701492. The cubic root of 4895911561 is about 1698.0267255180.

The spelling of 4895911561 in words is "four billion, eight hundred ninety-five million, nine hundred eleven thousand, five hundred sixty-one".