38717457433480 has 192 divisors, whose sum is σ = 102784454772480. Its totient is φ = 13085024601600.

The previous prime is 38717457433451. The next prime is 38717457433483. The reversal of 38717457433480 is 8433475471783.

It is a happy number.

It is a super-2 number, since 2×38717457433480² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38717457433483) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 792213445 + ... + 792262315.

It is an arithmetic number, because the mean of its divisors is an integer number (535335701940).

Almost surely, 2^{38717457433480} 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 38717457433480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51392227386240).

38717457433480 is an abundant number, since it is smaller than the sum of its proper divisors (64066997339000).

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

38717457433480 is a wasteful number, since it uses less digits than its factorization.

38717457433480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54660 (or 54649 counting only the distinct ones).

The product of its (nonzero) digits is 189665280, while the sum is 64.

The spelling of 38717457433480 in words is "thirty-eight trillion, seven hundred seventeen billion, four hundred fifty-seven million, four hundred thirty-three thousand, four hundred eighty".