38183356649 has 2 divisors, whose sum is σ = 38183356650. Its totient is φ = 38183356648.

The previous prime is 38183356639. The next prime is 38183356727. The reversal of 38183356649 is 94665338183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27807897049 + 10375459600 = 166757^2 + 101860^2 .

It is a cyclic number.

It is not a de Polignac number, because 38183356649 - 2⁴ = 38183356633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38183356594 and 38183356603.

It is not a weakly prime, because it can be changed into another prime (38183356639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19091678324 + 19091678325.

It is an arithmetic number, because the mean of its divisors is an integer number (19091678325).

Almost surely, 2^38183356649 is an apocalyptic number.

It is an amenable number.

38183356649 is a deficient number, since it is larger than the sum of its proper divisors (1).

38183356649 is an equidigital number, since it uses as much as digits as its factorization.

38183356649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11197440, while the sum is 56.

The spelling of 38183356649 in words is "thirty-eight billion, one hundred eighty-three million, three hundred fifty-six thousand, six hundred forty-nine".