99375730618 has 8 divisors (see below), whose sum is σ = 151507261620. Its totient is φ = 48873310080.

The previous prime is 99375730613. The next prime is 99375730633. The reversal of 99375730618 is 81603757399.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 80141646649 + 19234083969 = 283093^2 + 138687^2 .

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

It is a super-2 number, since 2×99375730618² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99375730613) 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 3 ways as a sum of consecutive naturals, for example, 407277463 + ... + 407277706.

Almost surely, 2^99375730618 is an apocalyptic number.

99375730618 is a deficient number, since it is larger than the sum of its proper divisors (52131531002).

99375730618 is a wasteful number, since it uses less digits than its factorization.

99375730618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814555232.

The product of its (nonzero) digits is 8573040, while the sum is 58.

The spelling of 99375730618 in words is "ninety-nine billion, three hundred seventy-five million, seven hundred thirty thousand, six hundred eighteen".