38746545557665 has 32 divisors (see below), whose sum is σ = 50857204527360. Its totient is φ = 28104667987200.

The previous prime is 38746545557663. The next prime is 38746545557701. The reversal of 38746545557665 is 56675554564783.

It is not a de Polignac number, because 38746545557665 - 2¹ = 38746545557663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38746545557591 and 38746545557600.

It is not an unprimeable number, because it can be changed into a prime (38746545557663) 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 31 ways as a sum of consecutive naturals, for example, 52549771 + ... + 53281999.

It is an arithmetic number, because the mean of its divisors is an integer number (1589287641480).

Almost surely, 2^{38746545557665} is an apocalyptic number.

It is an amenable number.

38746545557665 is a deficient number, since it is larger than the sum of its proper divisors (12110658969695).

38746545557665 is a wasteful number, since it uses less digits than its factorization.

38746545557665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734793.

The product of its digits is 12700800000, while the sum is 76.

The spelling of 38746545557665 in words is "thirty-eight trillion, seven hundred forty-six billion, five hundred forty-five million, five hundred fifty-seven thousand, six hundred sixty-five".