99670756898 has 8 divisors (see below), whose sum is σ = 149584787100. Its totient is φ = 49809161200.

The previous prime is 99670756891. The next prime is 99670756921. The reversal of 99670756898 is 89865707699.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 85055639449 + 14615117449 = 291643^2 + 120893^2 .

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

It is not an unprimeable number, because it can be changed into a prime (99670756891) 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, 13103873 + ... + 13111476.

Almost surely, 2^99670756898 is an apocalyptic number.

99670756898 is a deficient number, since it is larger than the sum of its proper divisors (49914030202).

99670756898 is a wasteful number, since it uses less digits than its factorization.

99670756898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26217252.

The product of its (nonzero) digits is 411505920, while the sum is 74.

The spelling of 99670756898 in words is "ninety-nine billion, six hundred seventy million, seven hundred fifty-six thousand, eight hundred ninety-eight".