99730259618 has 16 divisors (see below), whose sum is σ = 163688018400. Its totient is φ = 45194978400.

The previous prime is 99730259611. The next prime is 99730259621. The reversal of 99730259618 is 81695203799.

It is a super-2 number, since 2×99730259618² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99730259611) 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, 6840443 + ... + 6855006.

It is an arithmetic number, because the mean of its divisors is an integer number (10230501150).

Almost surely, 2^99730259618 is an apocalyptic number.

99730259618 is a deficient number, since it is larger than the sum of its proper divisors (63957758782).

99730259618 is a wasteful number, since it uses less digits than its factorization.

99730259618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13695793.

The product of its (nonzero) digits is 7348320, while the sum is 59.

The spelling of 99730259618 in words is "ninety-nine billion, seven hundred thirty million, two hundred fifty-nine thousand, six hundred eighteen".