1238752780000 has 120 divisors (see below), whose sum is σ = 3048680859840. Its totient is φ = 495312000000.

The previous prime is 1238752779977. The next prime is 1238752780019. The reversal of 1238752780000 is 872578321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 60009681 + ... + 60030319.

It is an arithmetic number, because the mean of its divisors is an integer number (25405673832).

Almost surely, 2^{1238752780000} is an apocalyptic number.

1238752780000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1238752780000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1524340429920).

1238752780000 is an abundant number, since it is smaller than the sum of its proper divisors (1809928079840).

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

1238752780000 is an equidigital number, since it uses as much as digits as its factorization.

1238752780000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23670 (or 23647 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 1238752780000 in words is "one trillion, two hundred thirty-eight billion, seven hundred fifty-two million, seven hundred eighty thousand".