248199776281 has 4 divisors (see below), whose sum is σ = 248201514000. Its totient is φ = 248198038564.

The previous prime is 248199776233. The next prime is 248199776309. The reversal of 248199776281 is 182677991842.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 248199776281 - 2¹¹ = 248199774233 is a prime.

It is a super-2 number, since 2×248199776281² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248199776581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633331 + ... + 947368.

It is an arithmetic number, because the mean of its divisors is an integer number (62050378500).

Almost surely, 2^248199776281 is an apocalyptic number.

It is an amenable number.

248199776281 is a deficient number, since it is larger than the sum of its proper divisors (1737719).

248199776281 is a wasteful number, since it uses less digits than its factorization.

248199776281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737718.

The product of its digits is 24385536, while the sum is 64.

The spelling of 248199776281 in words is "two hundred forty-eight billion, one hundred ninety-nine million, seven hundred seventy-six thousand, two hundred eighty-one".