245995020487 has 2 divisors, whose sum is σ = 245995020488. Its totient is φ = 245995020486.

The previous prime is 245995020451. The next prime is 245995020497. The reversal of 245995020487 is 784020599542.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245995020487 - 2³⁵ = 211635282119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245995020437) 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, 122997510243 + 122997510244.

It is an arithmetic number, because the mean of its divisors is an integer number (122997510244).

Almost surely, 2^245995020487 is an apocalyptic number.

245995020487 is a deficient number, since it is larger than the sum of its proper divisors (1).

245995020487 is an equidigital number, since it uses as much as digits as its factorization.

245995020487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 245995020487 in words is "two hundred forty-five billion, nine hundred ninety-five million, twenty thousand, four hundred eighty-seven".