39491472385 has 8 divisors (see below), whose sum is σ = 47393009856. Its totient is φ = 31591015920.

The previous prime is 39491472373. The next prime is 39491472403. The reversal of 39491472385 is 58327419493.

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

It is not a de Polignac number, because 39491472385 - 2²⁹ = 38954601473 is a prime.

It is a super-2 number, since 2×39491472385² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187579 + ... + 337888.

It is an arithmetic number, because the mean of its divisors is an integer number (5924126232).

Almost surely, 2^39491472385 is an apocalyptic number.

It is an amenable number.

39491472385 is a deficient number, since it is larger than the sum of its proper divisors (7901537471).

39491472385 is a wasteful number, since it uses less digits than its factorization.

39491472385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540503.

The product of its digits is 6531840, while the sum is 55.

The spelling of 39491472385 in words is "thirty-nine billion, four hundred ninety-one million, four hundred seventy-two thousand, three hundred eighty-five".