38654961989952 has 224 divisors, whose sum is σ = 127604929065984. Its totient is φ = 10032867532800.

The previous prime is 38654961989929. The next prime is 38654961989983. The reversal of 38654961989952 is 25998916945683.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (84).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19160463 + ... + 21081585.

Almost surely, 2^{38654961989952} is an apocalyptic number.

38654961989952 is a gapful number since it is divisible by the number (32) 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 38654961989952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63802464532992).

38654961989952 is an abundant number, since it is smaller than the sum of its proper divisors (88949967076032).

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

38654961989952 is a wasteful number, since it uses less digits than its factorization.

38654961989952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922517 (or 1922507 counting only the distinct ones).

The product of its digits is 9069926400, while the sum is 84.

The spelling of 38654961989952 in words is "thirty-eight trillion, six hundred fifty-four billion, nine hundred sixty-one million, nine hundred eighty-nine thousand, nine hundred fifty-two".