38748390913 has 2 divisors, whose sum is σ = 38748390914. Its totient is φ = 38748390912.

The previous prime is 38748390907. The next prime is 38748390917. The reversal of 38748390913 is 31909384783.

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., 37769201649 + 979189264 = 194343^2 + 31292^2 .

It is a cyclic number.

It is not a de Polignac number, because 38748390913 - 2¹⁷ = 38748259841 is a prime.

It is not a weakly prime, because it can be changed into another prime (38748390917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19374195456 + 19374195457.

It is an arithmetic number, because the mean of its divisors is an integer number (19374195457).

Almost surely, 2^38748390913 is an apocalyptic number.

It is an amenable number.

38748390913 is a deficient number, since it is larger than the sum of its proper divisors (1).

38748390913 is an equidigital number, since it uses as much as digits as its factorization.

38748390913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 38748390913 in words is "thirty-eight billion, seven hundred forty-eight million, three hundred ninety thousand, nine hundred thirteen".