97499999999 has 4 divisors (see below), whose sum is σ = 97500896280. Its totient is φ = 97499103720.

The previous prime is 97499999977. The next prime is 97500000019. The reversal of 97499999999 is 99999999479.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 97499999999 - 2¹² = 97499995903 is a prime.

It is a Duffinian number.

97499999999 is a modest number, since divided by 999999 gives 97499 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97499996999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258104 + ... + 511485.

It is an arithmetic number, because the mean of its divisors is an integer number (24375224070).

Almost surely, 2^97499999999 is an apocalyptic number.

97499999999 is a deficient number, since it is larger than the sum of its proper divisors (896281).

97499999999 is a wasteful number, since it uses less digits than its factorization.

97499999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896280.

The product of its digits is 10847773692, while the sum is 92.

The spelling of 97499999999 in words is "ninety-seven billion, four hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".