2297721795851 has 4 divisors (see below), whose sum is σ = 2320471516704. Its totient is φ = 2274972075000.

The previous prime is 2297721795839. The next prime is 2297721795869. The reversal of 2297721795851 is 1585971277922.

2297721795851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2297721795851 - 2²² = 2297717601547 is a prime.

It is a super-2 number, since 2×2297721795851² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2297721792851) 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, 11374860275 + ... + 11374860476.

It is an arithmetic number, because the mean of its divisors is an integer number (580117879176).

Almost surely, 2^{2297721795851} is an apocalyptic number.

2297721795851 is a deficient number, since it is larger than the sum of its proper divisors (22749720853).

2297721795851 is a wasteful number, since it uses less digits than its factorization.

2297721795851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22749720852.

The product of its digits is 44452800, while the sum is 65.

The spelling of 2297721795851 in words is "two trillion, two hundred ninety-seven billion, seven hundred twenty-one million, seven hundred ninety-five thousand, eight hundred fifty-one".