39488000865 has 64 divisors (see below), whose sum is σ = 67215052800. Its totient is φ = 19740305664.

The previous prime is 39488000863. The next prime is 39488000873. The reversal of 39488000865 is 56800088493.

It is not a de Polignac number, because 39488000865 - 2¹ = 39488000863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39488000863) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10897444 + ... + 10901066.

It is an arithmetic number, because the mean of its divisors is an integer number (1050235200).

Almost surely, 2^39488000865 is an apocalyptic number.

39488000865 is the 114729-th octagonal number.

It is an amenable number.

39488000865 is a deficient number, since it is larger than the sum of its proper divisors (27727051935).

39488000865 is a wasteful number, since it uses less digits than its factorization.

39488000865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4046.

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 39488000865 in words is "thirty-nine billion, four hundred eighty-eight million, eight hundred sixty-five", and thus it is an aban number.