38145209755648 has 24 divisors (see below), whose sum is σ = 76271793924690. Its totient is φ = 19072604876800.

The previous prime is 38145209755613. The next prime is 38145209755657. The reversal of 38145209755648 is 84655790254183.

It can be written as a sum of positive squares in only one way, i.e., 34492035032064 + 3653174723584 = 5872992^2 + 1911328^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9312793303 + ... + 9312797398.

It is a 1-persistent number, because it is pandigital, but 2⋅38145209755648 = 76290419511296 is not.

Almost surely, 2^{38145209755648} is an apocalyptic number.

It is an amenable number.

38145209755648 is a deficient number, since it is larger than the sum of its proper divisors (38126584169042).

38145209755648 is an equidigital number, since it uses as much as digits as its factorization.

38145209755648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18625590723 (or 18625590703 counting only the distinct ones).

The product of its (nonzero) digits is 290304000, while the sum is 67.

The spelling of 38145209755648 in words is "thirty-eight trillion, one hundred forty-five billion, two hundred nine million, seven hundred fifty-five thousand, six hundred forty-eight".