1238506247388 has 24 divisors (see below), whose sum is σ = 2893519912192. Its totient is φ = 412310844144.

The previous prime is 1238506247347. The next prime is 1238506247471. The reversal of 1238506247388 is 8837426058321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65561620 + ... + 65580507.

Almost surely, 2^{1238506247388} is an apocalyptic number.

It is an amenable number.

1238506247388 is an abundant number, since it is smaller than the sum of its proper divisors (1655013664804).

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

1238506247388 is a wasteful number, since it uses less digits than its factorization.

1238506247388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131142921 (or 131142919 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 1238506247388 in words is "one trillion, two hundred thirty-eight billion, five hundred six million, two hundred forty-seven thousand, three hundred eighty-eight".