653895070379987 has 2 divisors, whose sum is σ = 653895070379988. Its totient is φ = 653895070379986.

The previous prime is 653895070379977. The next prime is 653895070380103. The reversal of 653895070379987 is 789973070598356.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 653895070379987 - 2²⁶ = 653895003271123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 653895070379899 and 653895070379908.

It is not a weakly prime, because it can be changed into another prime (653895070379977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326947535189993 + 326947535189994.

It is an arithmetic number, because the mean of its divisors is an integer number (326947535189994).

Almost surely, 2^{653895070379987} is an apocalyptic number.

653895070379987 is a deficient number, since it is larger than the sum of its proper divisors (1).

653895070379987 is an equidigital number, since it uses as much as digits as its factorization.

653895070379987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21604060800, while the sum is 86.

The spelling of 653895070379987 in words is "six hundred fifty-three trillion, eight hundred ninety-five billion, seventy million, three hundred seventy-nine thousand, nine hundred eighty-seven".