39647541057 has 8 divisors (see below), whose sum is σ = 52989555360. Its totient is φ = 26368610400.

The previous prime is 39647540993. The next prime is 39647541061. The reversal of 39647541057 is 75014574693.

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

It is not a de Polignac number, because 39647541057 - 2⁶ = 39647540993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39647541257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15769444 + ... + 15771957.

It is an arithmetic number, because the mean of its divisors is an integer number (6623694420).

Almost surely, 2^39647541057 is an apocalyptic number.

It is an amenable number.

39647541057 is a deficient number, since it is larger than the sum of its proper divisors (13342014303).

39647541057 is a wasteful number, since it uses less digits than its factorization.

39647541057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31541823.

The product of its (nonzero) digits is 3175200, while the sum is 51.

The spelling of 39647541057 in words is "thirty-nine billion, six hundred forty-seven million, five hundred forty-one thousand, fifty-seven".