38827941521 has 4 divisors (see below), whose sum is σ = 39133673472. Its totient is φ = 38522209572.

The previous prime is 38827941517. The next prime is 38827941539. The reversal of 38827941521 is 12514972883.

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.

It is a cyclic number.

It is not a de Polignac number, because 38827941521 - 2² = 38827941517 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 38827941521.

It is not an unprimeable number, because it can be changed into a prime (38827943521) 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, 152865785 + ... + 152866038.

It is an arithmetic number, because the mean of its divisors is an integer number (9783418368).

Almost surely, 2^38827941521 is an apocalyptic number.

It is an amenable number.

38827941521 is a deficient number, since it is larger than the sum of its proper divisors (305731951).

38827941521 is a wasteful number, since it uses less digits than its factorization.

38827941521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305731950.

The product of its digits is 967680, while the sum is 50.

The spelling of 38827941521 in words is "thirty-eight billion, eight hundred twenty-seven million, nine hundred forty-one thousand, five hundred twenty-one".