248383997818 has 32 divisors (see below), whose sum is σ = 424391607360. Its totient is φ = 107989848960.

The previous prime is 248383997809. The next prime is 248383997831. The reversal of 248383997818 is 818799383842.

It is a super-2 number, since 2×248383997818² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1750971 + ... + 1887502.

It is an arithmetic number, because the mean of its divisors is an integer number (13262237730).

Almost surely, 2^248383997818 is an apocalyptic number.

248383997818 is a deficient number, since it is larger than the sum of its proper divisors (176007609542).

248383997818 is a wasteful number, since it uses less digits than its factorization.

248383997818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638622.

The product of its digits is 167215104, while the sum is 70.

The spelling of 248383997818 in words is "two hundred forty-eight billion, three hundred eighty-three million, nine hundred ninety-seven thousand, eight hundred eighteen".