38434283812521 has 27 divisors (see below), whose sum is σ = 55922219623101. Its totient is φ = 25436807709624.

The previous prime is 38434283812423. The next prime is 38434283812531. The reversal of 38434283812521 is 12521838243483.

The square root of 38434283812521 is 6199539.

It is a perfect power (a square), and thus also a powerful number.

38434283812521 is a `hidden beast` number, since 3 + 8 + 4 + 3 + 4 + 2 + 8 + 381 + 252 + 1 = 666.

It is not a de Polignac number, because 38434283812521 - 2²³ = 38434275423913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38434283812531) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2585200330 + ... + 2585215196.

Almost surely, 2^{38434283812521} is an apocalyptic number.

38434283812521 is the 6199539-th square number.

38434283812521 is the 3099770-th centered octagonal number.

It is an amenable number.

38434283812521 is a deficient number, since it is larger than the sum of its proper divisors (17487935810580).

38434283812521 is an frugal number, since it uses more digits than its factorization.

38434283812521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30018 (or 15009 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 54.

The spelling of 38434283812521 in words is "thirty-eight trillion, four hundred thirty-four billion, two hundred eighty-three million, eight hundred twelve thousand, five hundred twenty-one".