38607738397 has 2 divisors, whose sum is σ = 38607738398. Its totient is φ = 38607738396.

The previous prime is 38607738353. The next prime is 38607738431. The reversal of 38607738397 is 79383770683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28231056441 + 10376681956 = 168021^2 + 101866^2 .

It is a cyclic number.

It is not a de Polignac number, because 38607738397 - 2⁷ = 38607738269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38607738347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19303869198 + 19303869199.

It is an arithmetic number, because the mean of its divisors is an integer number (19303869199).

Almost surely, 2^38607738397 is an apocalyptic number.

It is an amenable number.

38607738397 is a deficient number, since it is larger than the sum of its proper divisors (1).

38607738397 is an equidigital number, since it uses as much as digits as its factorization.

38607738397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32006016, while the sum is 61.

The spelling of 38607738397 in words is "thirty-eight billion, six hundred seven million, seven hundred thirty-eight thousand, three hundred ninety-seven".