4156391287 has 2 divisors, whose sum is σ = 4156391288. Its totient is φ = 4156391286.

The previous prime is 4156391269. The next prime is 4156391329. The reversal of 4156391287 is 7821936514.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4156391287 - 2⁷ = 4156391159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4156391887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2078195643 + 2078195644.

It is an arithmetic number, because the mean of its divisors is an integer number (2078195644).

Almost surely, 2^4156391287 is an apocalyptic number.

4156391287 is a deficient number, since it is larger than the sum of its proper divisors (1).

4156391287 is an equidigital number, since it uses as much as digits as its factorization.

4156391287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The square root of 4156391287 is about 64470.0805567978. The cubic root of 4156391287 is about 1607.8251161618.

The spelling of 4156391287 in words is "four billion, one hundred fifty-six million, three hundred ninety-one thousand, two hundred eighty-seven".