38474532449 has 4 divisors (see below), whose sum is σ = 38478673920. Its totient is φ = 38470390980.

The previous prime is 38474532443. The next prime is 38474532463. The reversal of 38474532449 is 94423547483.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94423547483 = 139 ⋅679306097.

It is a cyclic number.

It is not a de Polignac number, because 38474532449 - 2⁸ = 38474532193 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 38474532449.

It is not an unprimeable number, because it can be changed into a prime (38474532443) 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, 2056769 + ... + 2075390.

It is an arithmetic number, because the mean of its divisors is an integer number (9619668480).

Almost surely, 2^38474532449 is an apocalyptic number.

It is an amenable number.

38474532449 is a deficient number, since it is larger than the sum of its proper divisors (4141471).

38474532449 is an equidigital number, since it uses as much as digits as its factorization.

38474532449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141470.

The product of its digits is 11612160, while the sum is 53.

The spelling of 38474532449 in words is "thirty-eight billion, four hundred seventy-four million, five hundred thirty-two thousand, four hundred forty-nine".