381527545725185 has 8 divisors (see below), whose sum is σ = 467574183697536. Its totient is φ = 298727950695280.

The previous prime is 381527545725121. The next prime is 381527545725203. The reversal of 381527545725185 is 581527545725183.

It is a happy number.

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

It is not a de Polignac number, because 381527545725185 - 2⁶ = 381527545725121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 811760735351 + ... + 811760735820.

It is an arithmetic number, because the mean of its divisors is an integer number (58446772962192).

Almost surely, 2^{381527545725185} is an apocalyptic number.

It is an amenable number.

381527545725185 is a deficient number, since it is larger than the sum of its proper divisors (86046637972351).

381527545725185 is a wasteful number, since it uses less digits than its factorization.

381527545725185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623521471223.

The product of its digits is 470400000, while the sum is 68.

The spelling of 381527545725185 in words is "three hundred eighty-one trillion, five hundred twenty-seven billion, five hundred forty-five million, seven hundred twenty-five thousand, one hundred eighty-five".