38715451678201 has 4 divisors (see below), whose sum is σ = 38787014436004. Its totient is φ = 38643888920400.

The previous prime is 38715451678159. The next prime is 38715451678223. The reversal of 38715451678201 is 10287615451783.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16539838286400 + 22175613391801 = 4066920^2 + 4709099^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38715451678201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38715451678601) 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, 35781378090 + ... + 35781379171.

It is an arithmetic number, because the mean of its divisors is an integer number (9696753609001).

Almost surely, 2^{38715451678201} is an apocalyptic number.

It is an amenable number.

38715451678201 is a deficient number, since it is larger than the sum of its proper divisors (71562757803).

38715451678201 is an equidigital number, since it uses as much as digits as its factorization.

38715451678201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71562757802.

The product of its (nonzero) digits is 11289600, while the sum is 58.

The spelling of 38715451678201 in words is "thirty-eight trillion, seven hundred fifteen billion, four hundred fifty-one million, six hundred seventy-eight thousand, two hundred one".