38074411821 has 4 divisors (see below), whose sum is σ = 50765882432. Its totient is φ = 25382941212.

The previous prime is 38074411759. The next prime is 38074411849. The reversal of 38074411821 is 12811447083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12811447083 = 3 ⋅4270482361.

It is not a de Polignac number, because 38074411821 - 2⁶ = 38074411757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38074411821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38074411861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6345735301 + ... + 6345735306.

It is an arithmetic number, because the mean of its divisors is an integer number (12691470608).

Almost surely, 2^38074411821 is an apocalyptic number.

It is an amenable number.

38074411821 is a deficient number, since it is larger than the sum of its proper divisors (12691470611).

38074411821 is a wasteful number, since it uses less digits than its factorization.

38074411821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12691470610.

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 38074411821 in words is "thirty-eight billion, seventy-four million, four hundred eleven thousand, eight hundred twenty-one".