99641261263 has 8 divisors (see below), whose sum is σ = 99737560800. Its totient is φ = 99544999008.

The previous prime is 99641261243. The next prime is 99641261281. The reversal of 99641261263 is 36216214699.

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 99641261263 - 2³³ = 91051326671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99641261243) 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, 9920398 + ... + 9930436.

It is an arithmetic number, because the mean of its divisors is an integer number (12467195100).

Almost surely, 2^99641261263 is an apocalyptic number.

99641261263 is a deficient number, since it is larger than the sum of its proper divisors (96299537).

99641261263 is a wasteful number, since it uses less digits than its factorization.

99641261263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18641.

The product of its digits is 839808, while the sum is 49.

The spelling of 99641261263 in words is "ninety-nine billion, six hundred forty-one million, two hundred sixty-one thousand, two hundred sixty-three".