210450778463 has 2 divisors, whose sum is σ = 210450778464. Its totient is φ = 210450778462.

The previous prime is 210450778399. The next prime is 210450778477. The reversal of 210450778463 is 364877054012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210450778463 - 2⁶ = 210450778399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210450778663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105225389231 + 105225389232.

It is an arithmetic number, because the mean of its divisors is an integer number (105225389232).

Almost surely, 2^210450778463 is an apocalyptic number.

210450778463 is a deficient number, since it is larger than the sum of its proper divisors (1).

210450778463 is an equidigital number, since it uses as much as digits as its factorization.

210450778463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 210450778463 in words is "two hundred ten billion, four hundred fifty million, seven hundred seventy-eight thousand, four hundred sixty-three".