248894871019 has 2 divisors, whose sum is σ = 248894871020. Its totient is φ = 248894871018.

The previous prime is 248894870999. The next prime is 248894871031. The reversal of 248894871019 is 910178498842.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248894871019 is a prime.

It is a super-2 number, since 2×248894871019² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (248894877019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124447435509 + 124447435510.

It is an arithmetic number, because the mean of its divisors is an integer number (124447435510).

Almost surely, 2^248894871019 is an apocalyptic number.

248894871019 is a deficient number, since it is larger than the sum of its proper divisors (1).

248894871019 is an equidigital number, since it uses as much as digits as its factorization.

248894871019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9289728, while the sum is 61.

The spelling of 248894871019 in words is "two hundred forty-eight billion, eight hundred ninety-four million, eight hundred seventy-one thousand, nineteen".