4213778651 has 2 divisors, whose sum is σ = 4213778652. Its totient is φ = 4213778650.

The previous prime is 4213778629. The next prime is 4213778683. The reversal of 4213778651 is 1568773124.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4213778651 is a prime.

It is not a weakly prime, because it can be changed into another prime (4213778351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2106889325 + 2106889326.

It is an arithmetic number, because the mean of its divisors is an integer number (2106889326).

Almost surely, 2^4213778651 is an apocalyptic number.

4213778651 is a deficient number, since it is larger than the sum of its proper divisors (1).

4213778651 is an equidigital number, since it uses as much as digits as its factorization.

4213778651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 44.

The square root of 4213778651 is about 64913.6245406155. The cubic root of 4213778651 is about 1615.1910749142.

The spelling of 4213778651 in words is "four billion, two hundred thirteen million, seven hundred seventy-eight thousand, six hundred fifty-one".