248639130488 has 16 divisors (see below), whose sum is σ = 532798136880. Its totient is φ = 106559627328.

The previous prime is 248639130457. The next prime is 248639130499. The reversal of 248639130488 is 884031936842.

It is a super-2 number, since 2×248639130488² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56), and also a Moran number because the ratio is a prime number: 4439984473 = 248639130488 / (2 + 4 + 8 + 6 + 3 + 9 + 1 + 3 + 0 + 4 + 8 + 8).

It is a congruent number.

It is an unprimeable number.

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, 2219992181 + ... + 2219992292.

It is an arithmetic number, because the mean of its divisors is an integer number (33299883555).

Almost surely, 2^248639130488 is an apocalyptic number.

248639130488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

248639130488 is an abundant number, since it is smaller than the sum of its proper divisors (284159006392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

248639130488 is a wasteful number, since it uses less digits than its factorization.

248639130488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4439984486 (or 4439984482 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 56.

The spelling of 248639130488 in words is "two hundred forty-eight billion, six hundred thirty-nine million, one hundred thirty thousand, four hundred eighty-eight".