380784728527 has 32 divisors (see below), whose sum is σ = 443048440320. Its totient is φ = 320547715200.

The previous prime is 380784728497. The next prime is 380784728537. The reversal of 380784728527 is 725827487083.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-380784728527 is a prime.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380784728537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64877749 + ... + 64883617.

It is an arithmetic number, because the mean of its divisors is an integer number (13845263760).

Almost surely, 2^380784728527 is an apocalyptic number.

380784728527 is a deficient number, since it is larger than the sum of its proper divisors (62263711793).

380784728527 is a wasteful number, since it uses less digits than its factorization.

380784728527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6703.

The product of its (nonzero) digits is 42147840, while the sum is 61.

The spelling of 380784728527 in words is "three hundred eighty billion, seven hundred eighty-four million, seven hundred twenty-eight thousand, five hundred twenty-seven".