38136897792 has 144 divisors (see below), whose sum is σ = 128888753280. Its totient is φ = 10896242688.

The previous prime is 38136897781. The next prime is 38136897797. The reversal of 38136897792 is 29779863183.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (38136897797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345723 + ... + 442490.

Almost surely, 2^38136897792 is an apocalyptic number.

38136897792 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38136897792 is an abundant number, since it is smaller than the sum of its proper divisors (90751855488).

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

38136897792 is an equidigital number, since it uses as much as digits as its factorization.

38136897792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788245 (or 788225 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 38136897792 in words is "thirty-eight billion, one hundred thirty-six million, eight hundred ninety-seven thousand, seven hundred ninety-two".