1238439997080 has 960 divisors, whose sum is σ = 4958898278400. Its totient is φ = 274781445120.

The previous prime is 1238439997073. The next prime is 1238439997099. The reversal of 1238439997080 is 807999348321.

1238439997080 is a `hidden beast` number, since 1 + 2 + 3 + 84 + 399 + 97 + 0 + 80 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1238439996999 and 1238439997017.

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 239 ways as a sum of consecutive naturals, for example, 764940511 + ... + 764942129.

It is an arithmetic number, because the mean of its divisors is an integer number (5165519040).

Almost surely, 2^{1238439997080} is an apocalyptic number.

1238439997080 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 1238439997080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2479449139200).

1238439997080 is an abundant number, since it is smaller than the sum of its proper divisors (3720458281320).

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

1238439997080 is a wasteful number, since it uses less digits than its factorization.

1238439997080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806 (or 1780 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 1238439997080 in words is "one trillion, two hundred thirty-eight billion, four hundred thirty-nine million, nine hundred ninety-seven thousand, eighty".