1248620859378 has 144 divisors (see below), whose sum is σ = 2925679236480. Its totient is φ = 399069413280.

The previous prime is 1248620859349. The next prime is 1248620859401. The reversal of 1248620859378 is 8739580268421.

1248620859378 is a `hidden beast` number, since 1 + 2 + 4 + 8 + 6 + 208 + 59 + 378 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 50895751 + ... + 50920277.

It is an arithmetic number, because the mean of its divisors is an integer number (20317216920).

It is a 1-persistent number, because it is pandigital, but 2⋅1248620859378 = 2497241718756 is not.

Almost surely, 2^{1248620859378} is an apocalyptic number.

1248620859378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1248620859378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1462839618240).

1248620859378 is an abundant number, since it is smaller than the sum of its proper divisors (1677058377102).

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

1248620859378 is a wasteful number, since it uses less digits than its factorization.

1248620859378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24715 (or 24672 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 63.

The spelling of 1248620859378 in words is "one trillion, two hundred forty-eight billion, six hundred twenty million, eight hundred fifty-nine thousand, three hundred seventy-eight".