38706519693 has 16 divisors (see below), whose sum is σ = 54658234880. Its totient is φ = 24296240304.

The previous prime is 38706519673. The next prime is 38706519697. The reversal of 38706519693 is 39691560783.

It is a happy number.

It is not a de Polignac number, because 38706519693 - 2⁶ = 38706519629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38706519697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2073721 + ... + 2092302.

It is an arithmetic number, because the mean of its divisors is an integer number (3416139680).

Almost surely, 2^38706519693 is an apocalyptic number.

It is an amenable number.

38706519693 is a deficient number, since it is larger than the sum of its proper divisors (15951715187).

38706519693 is a wasteful number, since it uses less digits than its factorization.

38706519693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4166208.

The product of its (nonzero) digits is 7348320, while the sum is 57.

The spelling of 38706519693 in words is "thirty-eight billion, seven hundred six million, five hundred nineteen thousand, six hundred ninety-three".