247875393795487 has 2 divisors, whose sum is σ = 247875393795488. Its totient is φ = 247875393795486.

The previous prime is 247875393795473. The next prime is 247875393795503. The reversal of 247875393795487 is 784597393578742.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 247875393795487 - 2¹⁵ = 247875393762719 is a prime.

It is a super-2 number, since 2×247875393795487² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247875393795398 and 247875393795407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247875393795467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123937696897743 + 123937696897744.

It is an arithmetic number, because the mean of its divisors is an integer number (123937696897744).

Almost surely, 2^{247875393795487} is an apocalyptic number.

247875393795487 is a deficient number, since it is larger than the sum of its proper divisors (1).

247875393795487 is an equidigital number, since it uses as much as digits as its factorization.

247875393795487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 89616844800, while the sum is 88.

The spelling of 247875393795487 in words is "two hundred forty-seven trillion, eight hundred seventy-five billion, three hundred ninety-three million, seven hundred ninety-five thousand, four hundred eighty-seven".