38240370509 has 12 divisors (see below), whose sum is σ = 43105891680. Its totient is φ = 33642545400.

The previous prime is 38240370479. The next prime is 38240370521. The reversal of 38240370509 is 90507304283.

It is not a de Polignac number, because 38240370509 - 2¹² = 38240366413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38240370529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1798169 + ... + 1819310.

It is an arithmetic number, because the mean of its divisors is an integer number (3592157640).

Almost surely, 2^38240370509 is an apocalyptic number.

It is an amenable number.

38240370509 is a deficient number, since it is larger than the sum of its proper divisors (4865521171).

38240370509 is a wasteful number, since it uses less digits than its factorization.

38240370509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3617552 (or 3617521 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 38240370509 in words is "thirty-eight billion, two hundred forty million, three hundred seventy thousand, five hundred nine".