38512885009 has 3 divisors (see below), whose sum is σ = 38513081257. Its totient is φ = 38512688762.

The previous prime is 38512884961. The next prime is 38512885063. The reversal of 38512885009 is 90058821583.

The square root of 38512885009 is 196247.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 38512885009 - 2⁷ = 38512884881 is a prime.

It is a super-3 number, since 3×38512885009³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30512885009) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 98124 + ... + 294370.

Almost surely, 2^38512885009 is an apocalyptic number.

38512885009 is the 196247-th square number.

38512885009 is the 98124-th centered octagonal number.

It is an amenable number.

38512885009 is a deficient number, since it is larger than the sum of its proper divisors (196248).

38512885009 is an frugal number, since it uses more digits than its factorization.

38512885009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392494 (or 196247 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 49.

Multiplying 38512885009 by its sum of digits (49), we get a square (1887131365441 = 1373729²).

It can be divided in two parts, 38512 and 885009, that added together give a 4-th power (923521 = 31⁴).

The spelling of 38512885009 in words is "thirty-eight billion, five hundred twelve million, eight hundred eighty-five thousand, nine".