38778395554 has 16 divisors (see below), whose sum is σ = 61528084992. Its totient is φ = 18292130208.

The previous prime is 38778395533. The next prime is 38778395561. The reversal of 38778395554 is 45559387783.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5770674 + ... + 5777389.

It is an arithmetic number, because the mean of its divisors is an integer number (3845505312).

Almost surely, 2^38778395554 is an apocalyptic number.

38778395554 is a deficient number, since it is larger than the sum of its proper divisors (22749689438).

38778395554 is a wasteful number, since it uses less digits than its factorization.

38778395554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11548161.

The product of its digits is 127008000, while the sum is 64.

The spelling of 38778395554 in words is "thirty-eight billion, seven hundred seventy-eight million, three hundred ninety-five thousand, five hundred fifty-four".