38345471892 has 288 divisors, whose sum is σ = 124059796224. Its totient is φ = 9716889600.

The previous prime is 38345471891. The next prime is 38345471893. The reversal of 38345471892 is 29817454383.

It is a happy number.

38345471892 is a `hidden beast` number, since 3 + 8 + 3 + 4 + 547 + 1 + 8 + 92 = 666.

It is an interprime number because it is at equal distance from previous prime (38345471891) and next prime (38345471893).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38345471891) by changing a digit.

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, 8997042 + ... + 9001302.

Almost surely, 2^38345471892 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 38345471892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62029898112).

38345471892 is an abundant number, since it is smaller than the sum of its proper divisors (85714324332).

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

38345471892 is a wasteful number, since it uses less digits than its factorization.

38345471892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4399 (or 4394 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 38345471892 in words is "thirty-eight billion, three hundred forty-five million, four hundred seventy-one thousand, eight hundred ninety-two".