38499551670840 has 384 divisors, whose sum is σ = 129726666478080. Its totient is φ = 9085359928320.

The previous prime is 38499551670787. The next prime is 38499551670851. The reversal of 38499551670840 is 4807615599483.

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 95 ways as a sum of consecutive naturals, for example, 160290117 + ... + 160530123.

It is an arithmetic number, because the mean of its divisors is an integer number (337829860620).

Almost surely, 2^{38499551670840} is an apocalyptic number.

38499551670840 is a gapful number since it is divisible by the number (30) 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 38499551670840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64863333239040).

38499551670840 is an abundant number, since it is smaller than the sum of its proper divisors (91227114807240).

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

38499551670840 is a wasteful number, since it uses less digits than its factorization.

38499551670840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240203 (or 240168 counting only the distinct ones).

The product of its (nonzero) digits is 261273600, while the sum is 69.

The spelling of 38499551670840 in words is "thirty-eight trillion, four hundred ninety-nine billion, five hundred fifty-one million, six hundred seventy thousand, eight hundred forty".