38497987584 has 528 divisors, whose sum is σ = 134208852960. Its totient is φ = 10868981760.

The previous prime is 38497987559. The next prime is 38497987597. The reversal of 38497987584 is 48578979483.

38497987584 is a `hidden beast` number, since 3 + 8 + 497 + 9 + 87 + 58 + 4 = 666.

It is a super-3 number, since 3×38497987584³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 212695974 + ... + 212696154.

Almost surely, 2^38497987584 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 38497987584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67104426480).

38497987584 is an abundant number, since it is smaller than the sum of its proper divisors (95710865376).

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

38497987584 is a wasteful number, since it uses less digits than its factorization.

38497987584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 350 counting only the distinct ones).

The product of its digits is 487710720, while the sum is 72.

The spelling of 38497987584 in words is "thirty-eight billion, four hundred ninety-seven million, nine hundred eighty-seven thousand, five hundred eighty-four".