38650550399 has 4 divisors (see below), whose sum is σ = 40331009136. Its totient is φ = 36970091664.

The previous prime is 38650550377. The next prime is 38650550423. The reversal of 38650550399 is 99305505683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99305505683 = 5077 ⋅19559879.

It is a cyclic number.

It is not a de Polignac number, because 38650550399 - 2²⁰ = 38649501823 is a prime.

It is a super-2 number, since 2×38650550399² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38650550399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38650550699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840229334 + ... + 840229379.

It is an arithmetic number, because the mean of its divisors is an integer number (10082752284).

Almost surely, 2^38650550399 is an apocalyptic number.

38650550399 is a deficient number, since it is larger than the sum of its proper divisors (1680458737).

38650550399 is a wasteful number, since it uses less digits than its factorization.

38650550399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680458736.

The product of its (nonzero) digits is 4374000, while the sum is 53.

The spelling of 38650550399 in words is "thirty-eight billion, six hundred fifty million, five hundred fifty thousand, three hundred ninety-nine".