1387687231224 has 192 divisors, whose sum is σ = 4417400832000. Its totient is φ = 393359270976.

The previous prime is 1387687231213. The next prime is 1387687231261. The reversal of 1387687231224 is 4221327867831.

It is a happy number.

1387687231224 is a `hidden beast` number, since 1 + 387 + 6 + 8 + 7 + 2 + 31 + 224 = 666.

It is a super-3 number, since 3×1387687231224³ (a number of 37 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2915169 + ... + 3357615.

It is an arithmetic number, because the mean of its divisors is an integer number (23007296000).

Almost surely, 2^{1387687231224} is an apocalyptic number.

1387687231224 is a gapful number since it is divisible by the number (14) 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 1387687231224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2208700416000).

1387687231224 is an abundant number, since it is smaller than the sum of its proper divisors (3029713600776).

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

1387687231224 is a wasteful number, since it uses less digits than its factorization.

1387687231224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442607 (or 442586 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The spelling of 1387687231224 in words is "one trillion, three hundred eighty-seven billion, six hundred eighty-seven million, two hundred thirty-one thousand, two hundred twenty-four".