380645999911 has 4 divisors (see below), whose sum is σ = 380676486024. Its totient is φ = 380615513800.

The previous prime is 380645999893. The next prime is 380645999917. The reversal of 380645999911 is 119999546083.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 380645999911 - 2¹¹ = 380645997863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380645999917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15224320 + ... + 15249301.

It is an arithmetic number, because the mean of its divisors is an integer number (95169121506).

Almost surely, 2^380645999911 is an apocalyptic number.

380645999911 is a deficient number, since it is larger than the sum of its proper divisors (30486113).

380645999911 is a wasteful number, since it uses less digits than its factorization.

380645999911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30486112.

The product of its (nonzero) digits is 18895680, while the sum is 64.

The spelling of 380645999911 in words is "three hundred eighty billion, six hundred forty-five million, nine hundred ninety-nine thousand, nine hundred eleven".