4156420747 has 2 divisors, whose sum is σ = 4156420748. Its totient is φ = 4156420746.

The previous prime is 4156420691. The next prime is 4156420757. The reversal of 4156420747 is 7470246514.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4156420747 is a prime.

It is not a weakly prime, because it can be changed into another prime (4156420757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2078210373 + 2078210374.

It is an arithmetic number, because the mean of its divisors is an integer number (2078210374).

Almost surely, 2^4156420747 is an apocalyptic number.

4156420747 is a deficient number, since it is larger than the sum of its proper divisors (1).

4156420747 is an equidigital number, since it uses as much as digits as its factorization.

4156420747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188160, while the sum is 40.

The square root of 4156420747 is about 64470.3090344695. The cubic root of 4156420747 is about 1607.8289148430.

The spelling of 4156420747 in words is "four billion, one hundred fifty-six million, four hundred twenty thousand, seven hundred forty-seven".