39549467481 has 8 divisors (see below), whose sum is σ = 52733543424. Its totient is φ = 26365851600.

The previous prime is 39549467467. The next prime is 39549467513. The reversal of 39549467481 is 18476494593.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39549467481 - 2²¹ = 39547370329 is a prime.

It is a super-2 number, since 2×39549467481² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39549465481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264040 + ... + 385766.

It is an arithmetic number, because the mean of its divisors is an integer number (6591692928).

Almost surely, 2^39549467481 is an apocalyptic number.

It is an amenable number.

39549467481 is a deficient number, since it is larger than the sum of its proper divisors (13184075943).

39549467481 is a wasteful number, since it uses less digits than its factorization.

39549467481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230031.

The product of its digits is 26127360, while the sum is 60.

The spelling of 39549467481 in words is "thirty-nine billion, five hundred forty-nine million, four hundred sixty-seven thousand, four hundred eighty-one".