2451994087 has 2 divisors, whose sum is σ = 2451994088. Its totient is φ = 2451994086.

The previous prime is 2451994063. The next prime is 2451994091. The reversal of 2451994087 is 7804991542.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2451994087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2451994087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2451994037) 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, 1225997043 + 1225997044.

It is an arithmetic number, because the mean of its divisors is an integer number (1225997044).

Almost surely, 2^2451994087 is an apocalyptic number.

2451994087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2451994087 is an equidigital number, since it uses as much as digits as its factorization.

2451994087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 2451994087 is about 49517.6139065686. The cubic root of 2451994087 is about 1348.4653960359.

The spelling of 2451994087 in words is "two billion, four hundred fifty-one million, nine hundred ninety-four thousand, eighty-seven".