381480556145 has 8 divisors (see below), whose sum is σ = 492990257256. Its totient is φ = 281708718336.

The previous prime is 381480556141. The next prime is 381480556199. The reversal of 381480556145 is 541655084183.

It can be written as a sum of positive squares in 4 ways, for example, as 16153393216 + 365327162929 = 127096^2 + 604423^2 .

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 381480556145 - 2² = 381480556141 is a prime.

It is a super-2 number, since 2×381480556145² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381480556093 and 381480556102.

It is not an unprimeable number, because it can be changed into a prime (381480556141) 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 7 ways as a sum of consecutive naturals, for example, 2934465752 + ... + 2934465881.

It is an arithmetic number, because the mean of its divisors is an integer number (61623782157).

Almost surely, 2^381480556145 is an apocalyptic number.

It is an amenable number.

381480556145 is a deficient number, since it is larger than the sum of its proper divisors (111509701111).

381480556145 is a wasteful number, since it uses less digits than its factorization.

381480556145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5868931651.

The product of its (nonzero) digits is 2304000, while the sum is 50.

The spelling of 381480556145 in words is "three hundred eighty-one billion, four hundred eighty million, five hundred fifty-six thousand, one hundred forty-five".