99403678436 has 48 divisors (see below), whose sum is σ = 180517843968. Its totient is φ = 47863872000.

The previous prime is 99403678433. The next prime is 99403678447. The reversal of 99403678436 is 63487630499.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (99403678433) 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 15 ways as a sum of consecutive naturals, for example, 4174781 + ... + 4198523.

It is an arithmetic number, because the mean of its divisors is an integer number (3760788416).

Almost surely, 2^99403678436 is an apocalyptic number.

It is an amenable number.

99403678436 is a deficient number, since it is larger than the sum of its proper divisors (81114165532).

99403678436 is a wasteful number, since it uses less digits than its factorization.

99403678436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24132 (or 24130 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 59.

The spelling of 99403678436 in words is "ninety-nine billion, four hundred three million, six hundred seventy-eight thousand, four hundred thirty-six".