1000047628581 has 8 divisors (see below), whose sum is σ = 1411831946304. Its totient is φ = 627480864960.

The previous prime is 1000047628561. The next prime is 1000047628607. The reversal of 1000047628581 is 1858267400001.

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

It is not a de Polignac number, because 1000047628581 - 2²² = 1000043434277 is a prime.

It is a super-2 number, since 2×1000047628581² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000047628561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9804388465 + ... + 9804388566.

It is an arithmetic number, because the mean of its divisors is an integer number (176478993288).

Almost surely, 2^{1000047628581} is an apocalyptic number.

It is an amenable number.

1000047628581 is a deficient number, since it is larger than the sum of its proper divisors (411784317723).

1000047628581 is a wasteful number, since it uses less digits than its factorization.

1000047628581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19608777051.

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 1000047628581 in words is "one trillion, forty-seven million, six hundred twenty-eight thousand, five hundred eighty-one".