38436243331 has 4 divisors (see below), whose sum is σ = 38437659064. Its totient is φ = 38434827600.

The previous prime is 38436243301. The next prime is 38436243337. The reversal of 38436243331 is 13334263483.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38436243331 - 2¹⁹ = 38435719043 is a prime.

It is a super-2 number, since 2×38436243331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38436243337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666330 + ... + 721711.

It is an arithmetic number, because the mean of its divisors is an integer number (9609414766).

Almost surely, 2^38436243331 is an apocalyptic number.

38436243331 is a deficient number, since it is larger than the sum of its proper divisors (1415733).

38436243331 is a wasteful number, since it uses less digits than its factorization.

38436243331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415732.

The product of its digits is 373248, while the sum is 40.

The spelling of 38436243331 in words is "thirty-eight billion, four hundred thirty-six million, two hundred forty-three thousand, three hundred thirty-one".