287220874060453 has 2 divisors, whose sum is σ = 287220874060454. Its totient is φ = 287220874060452.

The previous prime is 287220874060433. The next prime is 287220874060499. The reversal of 287220874060453 is 354060478022782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 284445191443009 + 2775682617444 = 16865503^2 + 1666038^2 .

It is a cyclic number.

It is not a de Polignac number, because 287220874060453 - 2³⁷ = 287083435106981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (287220874060433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143610437030226 + 143610437030227.

It is an arithmetic number, because the mean of its divisors is an integer number (143610437030227).

Almost surely, 2^{287220874060453} is an apocalyptic number.

It is an amenable number.

287220874060453 is a deficient number, since it is larger than the sum of its proper divisors (1).

287220874060453 is an equidigital number, since it uses as much as digits as its factorization.

287220874060453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36126720, while the sum is 58.

The spelling of 287220874060453 in words is "two hundred eighty-seven trillion, two hundred twenty billion, eight hundred seventy-four million, sixty thousand, four hundred fifty-three".