1941631617 has 8 divisors (see below), whose sum is σ = 2643924096. Its totient is φ = 1266880112.

The previous prime is 1941631613. The next prime is 1941631619. The reversal of 1941631617 is 7161361491.

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

It is not a de Polignac number, because 1941631617 - 2² = 1941631613 is a prime.

It is a super-2 number, since 2×1941631617² = 7539866672268069378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1941631613) 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, 6885078 + ... + 6885359.

It is an arithmetic number, because the mean of its divisors is an integer number (330490512).

Almost surely, 2^1941631617 is an apocalyptic number.

It is an amenable number.

1941631617 is a deficient number, since it is larger than the sum of its proper divisors (702292479).

1941631617 is a wasteful number, since it uses less digits than its factorization.

1941631617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13770487.

The product of its digits is 27216, while the sum is 39.

The square root of 1941631617 is about 44063.9491761689. The cubic root of 1941631617 is about 1247.5432529719.

The spelling of 1941631617 in words is "one billion, nine hundred forty-one million, six hundred thirty-one thousand, six hundred seventeen".