38778980443 has 16 divisors (see below), whose sum is σ = 45763577856. Its totient is φ = 32156277120.

The previous prime is 38778980441. The next prime is 38778980447. The reversal of 38778980443 is 34408987783.

It is a cyclic number.

It is not a de Polignac number, because 38778980443 - 2¹ = 38778980441 is a prime.

It is a super-4 number, since 4×38778980443⁴ (a number of 43 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38778980441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 667155 + ... + 722947.

It is an arithmetic number, because the mean of its divisors is an integer number (2860223616).

Almost surely, 2^38778980443 is an apocalyptic number.

38778980443 is a deficient number, since it is larger than the sum of its proper divisors (6984597413).

38778980443 is a wasteful number, since it uses less digits than its factorization.

38778980443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59034.

The product of its (nonzero) digits is 32514048, while the sum is 61.

The spelling of 38778980443 in words is "thirty-eight billion, seven hundred seventy-eight million, nine hundred eighty thousand, four hundred forty-three".