38648649106 has 4 divisors (see below), whose sum is σ = 57972973662. Its totient is φ = 19324324552.

The previous prime is 38648649079. The next prime is 38648649107. The reversal of 38648649106 is 60194684683.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23873031081 + 14775618025 = 154509^2 + 121555^2 .

It is not an unprimeable number, because it can be changed into a prime (38648649107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9662162275 + ... + 9662162278.

Almost surely, 2^38648649106 is an apocalyptic number.

38648649106 is a deficient number, since it is larger than the sum of its proper divisors (19324324556).

38648649106 is a wasteful number, since it uses less digits than its factorization.

38648649106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19324324555.

The product of its (nonzero) digits is 5971968, while the sum is 55.

The spelling of 38648649106 in words is "thirty-eight billion, six hundred forty-eight million, six hundred forty-nine thousand, one hundred six".