455238379787 has 2 divisors, whose sum is σ = 455238379788. Its totient is φ = 455238379786.

The previous prime is 455238379777. The next prime is 455238379807. The reversal of 455238379787 is 787973832554.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 455238379787 - 2²⁶ = 455171270923 is a prime.

It is not a weakly prime, because it can be changed into another prime (455238379777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227619189893 + 227619189894.

It is an arithmetic number, because the mean of its divisors is an integer number (227619189894).

Almost surely, 2^455238379787 is an apocalyptic number.

455238379787 is a deficient number, since it is larger than the sum of its proper divisors (1).

455238379787 is an equidigital number, since it uses as much as digits as its factorization.

455238379787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 355622400, while the sum is 68.

The spelling of 455238379787 in words is "four hundred fifty-five billion, two hundred thirty-eight million, three hundred seventy-nine thousand, seven hundred eighty-seven".