1238786057916 has 480 divisors, whose sum is σ = 3704032856832. Its totient is φ = 359169085440.

The previous prime is 1238786057909. The next prime is 1238786057939. The reversal of 1238786057916 is 6197506878321.

1238786057916 is a `hidden beast` number, since 1 + 2 + 3 + 8 + 7 + 8 + 605 + 7 + 9 + 16 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2146942620 + ... + 2146943196.

Almost surely, 2^{1238786057916} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1238786057916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1852016428416).

1238786057916 is an abundant number, since it is smaller than the sum of its proper divisors (2465246798916).

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

1238786057916 is an equidigital number, since it uses as much as digits as its factorization.

1238786057916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 63.

The spelling of 1238786057916 in words is "one trillion, two hundred thirty-eight billion, seven hundred eighty-six million, fifty-seven thousand, nine hundred sixteen".