38625470309 has 2 divisors, whose sum is σ = 38625470310. Its totient is φ = 38625470308.

The previous prime is 38625470267. The next prime is 38625470341. The reversal of 38625470309 is 90307452683.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22737624100 + 15887846209 = 150790^2 + 126047^2 .

It is a cyclic number.

It is not a de Polignac number, because 38625470309 - 2²⁰ = 38624421733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38625470369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19312735154 + 19312735155.

It is an arithmetic number, because the mean of its divisors is an integer number (19312735155).

Almost surely, 2^38625470309 is an apocalyptic number.

It is an amenable number.

38625470309 is a deficient number, since it is larger than the sum of its proper divisors (1).

38625470309 is an equidigital number, since it uses as much as digits as its factorization.

38625470309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 38625470309 in words is "thirty-eight billion, six hundred twenty-five million, four hundred seventy thousand, three hundred nine".