4061491787 has 2 divisors, whose sum is σ = 4061491788. Its totient is φ = 4061491786.

The previous prime is 4061491751. The next prime is 4061491849. The reversal of 4061491787 is 7871941604.

It is a happy number.

4061491787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4061491787 - 2¹² = 4061487691 is a prime.

It is not a weakly prime, because it can be changed into another prime (4061491717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2030745893 + 2030745894.

It is an arithmetic number, because the mean of its divisors is an integer number (2030745894).

Almost surely, 2^4061491787 is an apocalyptic number.

4061491787 is a deficient number, since it is larger than the sum of its proper divisors (1).

4061491787 is an equidigital number, since it uses as much as digits as its factorization.

4061491787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 4061491787 is about 63729.8343556611. The cubic root of 4061491787 is about 1595.4940653568.

The spelling of 4061491787 in words is "four billion, sixty-one million, four hundred ninety-one thousand, seven hundred eighty-seven".