38835740021 has 8 divisors (see below), whose sum is σ = 43265281080. Its totient is φ = 34612224192.

The previous prime is 38835739951. The next prime is 38835740029. The reversal of 38835740021 is 12004753883.

38835740021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4968699121 + 33867040900 = 70489^2 + 184030^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-38835740021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38835740029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51505910 + ... + 51506663.

It is an arithmetic number, because the mean of its divisors is an integer number (5408160135).

Almost surely, 2^38835740021 is an apocalyptic number.

It is an amenable number.

38835740021 is a deficient number, since it is larger than the sum of its proper divisors (4429541059).

38835740021 is a wasteful number, since it uses less digits than its factorization.

38835740021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103012615.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 38835740021 in words is "thirty-eight billion, eight hundred thirty-five million, seven hundred forty thousand, twenty-one".