38780400554 has 12 divisors (see below), whose sum is σ = 67667841954. Its totient is φ = 16620171624.

The previous prime is 38780400551. The next prime is 38780400559. The reversal of 38780400554 is 45500408783.

It can be written as a sum of positive squares in only one way, i.e., 24343176529 + 14437224025 = 156023^2 + 120155^2 .

It is not an unprimeable number, because it can be changed into a prime (38780400551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 197859089 + ... + 197859284.

Almost surely, 2^38780400554 is an apocalyptic number.

38780400554 is a deficient number, since it is larger than the sum of its proper divisors (28887441400).

38780400554 is a wasteful number, since it uses less digits than its factorization.

38780400554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395718389 (or 395718382 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 44.

The spelling of 38780400554 in words is "thirty-eight billion, seven hundred eighty million, four hundred thousand, five hundred fifty-four".