380423540657 has 4 divisors (see below), whose sum is σ = 380425375860. Its totient is φ = 380421705456.

The previous prime is 380423540611. The next prime is 380423540671. The reversal of 380423540657 is 756045324083.

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

It can be written as a sum of positive squares in 2 ways, for example, as 97693128481 + 282730412176 = 312559^2 + 531724^2 .

It is a cyclic number.

It is not a de Polignac number, because 380423540657 - 2³⁴ = 363243671473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380423543657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560282 + ... + 1036707.

It is an arithmetic number, because the mean of its divisors is an integer number (95106343965).

Almost surely, 2^380423540657 is an apocalyptic number.

It is an amenable number.

380423540657 is a deficient number, since it is larger than the sum of its proper divisors (1835203).

380423540657 is a wasteful number, since it uses less digits than its factorization.

380423540657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835202.

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 380423540657 in words is "three hundred eighty billion, four hundred twenty-three million, five hundred forty thousand, six hundred fifty-seven".