4201491491 has 2 divisors, whose sum is σ = 4201491492. Its totient is φ = 4201491490.

The previous prime is 4201491479. The next prime is 4201491587. The reversal of 4201491491 is 1941941024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4201491491 - 2¹⁴ = 4201475107 is a prime.

It is not a weakly prime, because it can be changed into another prime (4201491431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2100745745 + 2100745746.

It is an arithmetic number, because the mean of its divisors is an integer number (2100745746).

Almost surely, 2^4201491491 is an apocalyptic number.

4201491491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4201491491 is an equidigital number, since it uses as much as digits as its factorization.

4201491491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 4201491491 is about 64818.9130655552. The cubic root of 4201491491 is about 1613.6196086839.

The spelling of 4201491491 in words is "four billion, two hundred one million, four hundred ninety-one thousand, four hundred ninety-one".