38430609157 has 2 divisors, whose sum is σ = 38430609158. Its totient is φ = 38430609156.

The previous prime is 38430609109. The next prime is 38430609167. The reversal of 38430609157 is 75190603483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21259389636 + 17171219521 = 145806^2 + 131039^2 .

It is an emirp because it is prime and its reverse (75190603483) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38430609157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38430609167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19215304578 + 19215304579.

It is an arithmetic number, because the mean of its divisors is an integer number (19215304579).

Almost surely, 2^38430609157 is an apocalyptic number.

It is an amenable number.

38430609157 is a deficient number, since it is larger than the sum of its proper divisors (1).

38430609157 is an equidigital number, since it uses as much as digits as its factorization.

38430609157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 38430609157 in words is "thirty-eight billion, four hundred thirty million, six hundred nine thousand, one hundred fifty-seven".