38256156409 has 2 divisors, whose sum is σ = 38256156410. Its totient is φ = 38256156408.

The previous prime is 38256156383. The next prime is 38256156439. The reversal of 38256156409 is 90465165283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37746661225 + 509495184 = 194285^2 + 22572^2 .

It is a cyclic number.

It is not a de Polignac number, because 38256156409 - 2¹⁵ = 38256123641 is a prime.

It is not a weakly prime, because it can be changed into another prime (38256156439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19128078204 + 19128078205.

It is an arithmetic number, because the mean of its divisors is an integer number (19128078205).

Almost surely, 2^38256156409 is an apocalyptic number.

It is an amenable number.

38256156409 is a deficient number, since it is larger than the sum of its proper divisors (1).

38256156409 is an equidigital number, since it uses as much as digits as its factorization.

38256156409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 38256156409 in words is "thirty-eight billion, two hundred fifty-six million, one hundred fifty-six thousand, four hundred nine".