380731637645 has 8 divisors (see below), whose sum is σ = 483753139704. Its totient is φ = 286668527104.

The previous prime is 380731637581. The next prime is 380731637647. The reversal of 380731637645 is 546736137083.

It can be written as a sum of positive squares in 4 ways, for example, as 95355587209 + 285376050436 = 308797^2 + 534206^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 380731637645 - 2⁶ = 380731637581 is a prime.

It is a super-3 number, since 3×380731637645³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380731637647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2239597784 + ... + 2239597953.

It is an arithmetic number, because the mean of its divisors is an integer number (60469142463).

Almost surely, 2^380731637645 is an apocalyptic number.

It is an amenable number.

380731637645 is a deficient number, since it is larger than the sum of its proper divisors (103021502059).

380731637645 is a wasteful number, since it uses less digits than its factorization.

380731637645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4479195759.

The product of its (nonzero) digits is 7620480, while the sum is 53.

The spelling of 380731637645 in words is "three hundred eighty billion, seven hundred thirty-one million, six hundred thirty-seven thousand, six hundred forty-five".