916541621406931 has 8 divisors (see below), whose sum is σ = 987196187172384. Its totient is φ = 845908679087040.

The previous prime is 916541621406919. The next prime is 916541621407067. The reversal of 916541621406931 is 139604126145619.

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 916541621406931 - 2¹¹ = 916541621404883 is a prime.

It is a super-2 number, since 2×916541621406931² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (916541621406731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5405773351 + ... + 5405942896.

It is an arithmetic number, because the mean of its divisors is an integer number (123399523396548).

Almost surely, 2^{916541621406931} is an apocalyptic number.

916541621406931 is a deficient number, since it is larger than the sum of its proper divisors (70654565765453).

916541621406931 is a wasteful number, since it uses less digits than its factorization.

916541621406931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10811722781.

The product of its (nonzero) digits is 8398080, while the sum is 58.

The spelling of 916541621406931 in words is "nine hundred sixteen trillion, five hundred forty-one billion, six hundred twenty-one million, four hundred six thousand, nine hundred thirty-one".