380555128749 has 16 divisors (see below), whose sum is σ = 529574400000. Its totient is φ = 242624071536.

The previous prime is 380555128721. The next prime is 380555128771. The reversal of 380555128749 is 947821555083.

It is not a de Polignac number, because 380555128749 - 2⁵ = 380555128717 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380555128799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206709 + ... + 896570.

It is an arithmetic number, because the mean of its divisors is an integer number (33098400000).

Almost surely, 2^380555128749 is an apocalyptic number.

It is an amenable number.

380555128749 is a deficient number, since it is larger than the sum of its proper divisors (149019271251).

380555128749 is a wasteful number, since it uses less digits than its factorization.

380555128749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108304.

The product of its (nonzero) digits is 12096000, while the sum is 57.

The spelling of 380555128749 in words is "three hundred eighty billion, five hundred fifty-five million, one hundred twenty-eight thousand, seven hundred forty-nine".