74899100329 has 27 divisors (see below), whose sum is σ = 79874434647. Its totient is φ = 70227707616.

The previous prime is 74899100299. The next prime is 74899100359. The reversal of 74899100329 is 92300199847.

It is a happy number.

The square root of 74899100329 is 273677.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (74899100299) and next prime (74899100359).

It can be written as a sum of positive squares in only one way, i.e., 42516378025 + 32382722304 = 206195^2 + 179952^2 .

It is not a de Polignac number, because 74899100329 - 2⁷ = 74899100201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74899100359) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 459503602 + ... + 459503764.

Almost surely, 2^74899100329 is an apocalyptic number.

74899100329 is the 273677-th square number.

74899100329 is the 136839-th centered octagonal number.

It is an amenable number.

74899100329 is a deficient number, since it is larger than the sum of its proper divisors (4975334318).

74899100329 is an frugal number, since it uses more digits than its factorization.

74899100329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 52.

The spelling of 74899100329 in words is "seventy-four billion, eight hundred ninety-nine million, one hundred thousand, three hundred twenty-nine".