38397815005 has 16 divisors (see below), whose sum is σ = 50281507584. Its totient is φ = 27917196480.

The previous prime is 38397814981. The next prime is 38397815009. The reversal of 38397815005 is 50051879383.

It is a de Polignac number, because none of the positive numbers 2^k-38397815005 is a prime.

It is a super-3 number, since 3×38397815005³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38397815005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38397815009) 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, 79447 + ... + 288283.

It is an arithmetic number, because the mean of its divisors is an integer number (3142594224).

Almost surely, 2^38397815005 is an apocalyptic number.

It is an amenable number.

38397815005 is a deficient number, since it is larger than the sum of its proper divisors (11883692579).

38397815005 is a wasteful number, since it uses less digits than its factorization.

38397815005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212196.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 38397815005 in words is "thirty-eight billion, three hundred ninety-seven million, eight hundred fifteen thousand, five".