248477719489 has 4 divisors (see below), whose sum is σ = 252689206320. Its totient is φ = 244266232660.

The previous prime is 248477719447. The next prime is 248477719499. The reversal of 248477719489 is 984917774842.

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 248477719489 - 2¹³ = 248477711297 is a prime.

It is a super-2 number, since 2×248477719489² (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 (248477719499) 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, 2105743327 + ... + 2105743444.

It is an arithmetic number, because the mean of its divisors is an integer number (63172301580).

Almost surely, 2^248477719489 is an apocalyptic number.

It is an amenable number.

248477719489 is a deficient number, since it is larger than the sum of its proper divisors (4211486831).

248477719489 is an equidigital number, since it uses as much as digits as its factorization.

248477719489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211486830.

The product of its digits is 227598336, while the sum is 70.

The spelling of 248477719489 in words is "two hundred forty-eight billion, four hundred seventy-seven million, seven hundred nineteen thousand, four hundred eighty-nine".