9918952541 has 8 divisors (see below), whose sum is σ = 10262688768. Its totient is φ = 9576702000.

The previous prime is 9918952529. The next prime is 9918952567. The reversal of 9918952541 is 1452598199.

It is a happy number.

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 9918952541 - 2²² = 9914758237 is a prime.

It is a super-2 number, since 2×9918952541² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9918952741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357830 + ... + 384551.

It is an arithmetic number, because the mean of its divisors is an integer number (1282836096).

Almost surely, 2^9918952541 is an apocalyptic number.

It is an amenable number.

9918952541 is a deficient number, since it is larger than the sum of its proper divisors (343736227).

9918952541 is a wasteful number, since it uses less digits than its factorization.

9918952541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742843.

The product of its digits is 1166400, while the sum is 53.

The square root of 9918952541 is about 99593.9382743749. The cubic root of 9918952541 is about 2148.5985127008.

The spelling of 9918952541 in words is "nine billion, nine hundred eighteen million, nine hundred fifty-two thousand, five hundred forty-one".