2153776063 has 4 divisors (see below), whose sum is σ = 2158916760. Its totient is φ = 2148635368.

The previous prime is 2153776039. The next prime is 2153776073. The reversal of 2153776063 is 3606773512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2153776063 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153776033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2569720 + ... + 2570557.

It is an arithmetic number, because the mean of its divisors is an integer number (539729190).

Almost surely, 2^2153776063 is an apocalyptic number.

2153776063 is a deficient number, since it is larger than the sum of its proper divisors (5140697).

2153776063 is an equidigital number, since it uses as much as digits as its factorization.

2153776063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140696.

The product of its (nonzero) digits is 158760, while the sum is 40.

The square root of 2153776063 is about 46408.7929491815. The cubic root of 2153776063 is about 1291.4180394235.

The spelling of 2153776063 in words is "two billion, one hundred fifty-three million, seven hundred seventy-six thousand, sixty-three".