2542067491 has 2 divisors, whose sum is σ = 2542067492. Its totient is φ = 2542067490.

The previous prime is 2542067459. The next prime is 2542067531. The reversal of 2542067491 is 1947602452.

It is an a-pointer prime, because the next prime (2542067531) can be obtained adding 2542067491 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2542067491 - 2⁵ = 2542067459 is a prime.

It is not a weakly prime, because it can be changed into another prime (2542067401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271033745 + 1271033746.

It is an arithmetic number, because the mean of its divisors is an integer number (1271033746).

Almost surely, 2^2542067491 is an apocalyptic number.

2542067491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2542067491 is an equidigital number, since it uses as much as digits as its factorization.

2542067491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 2542067491 is about 50418.9199705825. The cubic root of 2542067491 is about 1364.7790866488.

The spelling of 2542067491 in words is "two billion, five hundred forty-two million, sixty-seven thousand, four hundred ninety-one".