248078492281 has 4 divisors (see below), whose sum is σ = 248111128912. Its totient is φ = 248045855652.

The previous prime is 248078492237. The next prime is 248078492297. The reversal of 248078492281 is 182294870842.

It is a happy number.

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 248078492281 - 2⁷ = 248078492153 is a prime.

It is a super-2 number, since 2×248078492281² (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 (248078492201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16306911 + ... + 16322116.

It is an arithmetic number, because the mean of its divisors is an integer number (62027782228).

Almost surely, 2^248078492281 is an apocalyptic number.

It is an amenable number.

248078492281 is a deficient number, since it is larger than the sum of its proper divisors (32636631).

248078492281 is an equidigital number, since it uses as much as digits as its factorization.

248078492281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32636630.

The product of its (nonzero) digits is 4128768, while the sum is 55.

The spelling of 248078492281 in words is "two hundred forty-eight billion, seventy-eight million, four hundred ninety-two thousand, two hundred eighty-one".